add staticcheck as a presubmit check

[julieqiu]

staticcheck is a common linter for Go projects. We should consider adding it as a presubmit check for PRs to catch things like #1527, #1526, and #1525

We should consider adding it as a presubmit check for this repo. See googleapis/gapic-generator-go#1404 for a similar feature.

As of [f888517](https://github.com/googleapis/gapic-showcase/commit/f8885173d81acd923e10b113e5f55ed18f58bf31), running staticcheck returns these errors:

client/compliance_client.go:71:3: internaloption.WithDefaultEndpoint is deprecated: WithDefaultEndpoint does not support setting the universe domain. Use WithDefaultEndpointTemplate and WithDefaultUniverseDomain to compose the default endpoint instead.  (SA1019)
client/compliance_client.go:431:3: internaloption.WithDefaultEndpoint is deprecated: WithDefaultEndpoint does not support setting the universe domain. Use WithDefaultEndpointTemplate and WithDefaultUniverseDomain to compose the default endpoint instead.  (SA1019)
client/echo_client.go:81:3: internaloption.WithDefaultEndpoint is deprecated: WithDefaultEndpoint does not support setting the universe domain. Use WithDefaultEndpointTemplate and WithDefaultUniverseDomain to compose the default endpoint instead.  (SA1019)
client/echo_client.go:597:3: internaloption.WithDefaultEndpoint is deprecated: WithDefaultEndpoint does not support setting the universe domain. Use WithDefaultEndpointTemplate and WithDefaultUniverseDomain to compose the default endpoint instead.  (SA1019)
client/identity_client.go:68:3: internaloption.WithDefaultEndpoint is deprecated: WithDefaultEndpoint does not support setting the universe domain. Use WithDefaultEndpointTemplate and WithDefaultUniverseDomain to compose the default endpoint instead.  (SA1019)
client/identity_client.go:412:3: internaloption.WithDefaultEndpoint is deprecated: WithDefaultEndpoint does not support setting the universe domain. Use WithDefaultEndpointTemplate and WithDefaultUniverseDomain to compose the default endpoint instead.  (SA1019)
client/messaging_client.go:81:3: internaloption.WithDefaultEndpoint is deprecated: WithDefaultEndpoint does not support setting the universe domain. Use WithDefaultEndpointTemplate and WithDefaultUniverseDomain to compose the default endpoint instead.  (SA1019)
client/messaging_client.go:682:3: internaloption.WithDefaultEndpoint is deprecated: WithDefaultEndpoint does not support setting the universe domain. Use WithDefaultEndpointTemplate and WithDefaultUniverseDomain to compose the default endpoint instead.  (SA1019)
client/sequence_client.go:71:3: internaloption.WithDefaultEndpoint is deprecated: WithDefaultEndpoint does not support setting the universe domain. Use WithDefaultEndpointTemplate and WithDefaultUniverseDomain to compose the default endpoint instead.  (SA1019)
client/sequence_client.go:412:3: internaloption.WithDefaultEndpoint is deprecated: WithDefaultEndpoint does not support setting the universe domain. Use WithDefaultEndpointTemplate and WithDefaultUniverseDomain to compose the default endpoint instead.  (SA1019)
client/testing_client.go:69:3: internaloption.WithDefaultEndpoint is deprecated: WithDefaultEndpoint does not support setting the universe domain. Use WithDefaultEndpointTemplate and WithDefaultUniverseDomain to compose the default endpoint instead.  (SA1019)
client/testing_client.go:424:3: internaloption.WithDefaultEndpoint is deprecated: WithDefaultEndpoint does not support setting the universe domain. Use WithDefaultEndpointTemplate and WithDefaultUniverseDomain to compose the default endpoint instead.  (SA1019)
cmd/gapic-showcase/attempt-sequence.go:10:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/attempt-sequence.go:43:3: this value of in is never used (SA4006)
cmd/gapic-showcase/attempt-streaming-sequence.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/attempt-streaming-sequence.go:49:3: this value of in is never used (SA4006)
cmd/gapic-showcase/block.go:16:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/block.go:77:3: this value of in is never used (SA4006)
cmd/gapic-showcase/block.go:101:12: error strings should not be capitalized (ST1005)
cmd/gapic-showcase/chat.go:14:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/collect.go:14:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/compliance_service.go:72:12: error strings should not be capitalized (ST1005)
cmd/gapic-showcase/compliance_suite_errors_test.go:19:2: "io/ioutil" has been deprecated since Go 1.19: As of Go 1.16, the same functionality is now provided by package [io] or package [os], and those implementations should be preferred in new code. See the specific function documentation for details.  (SA1019)
cmd/gapic-showcase/compliance_suite_errors_test.go:24:2: package "github.com/googleapis/gapic-showcase/server/genproto" is being imported more than once (ST1019)
	cmd/gapic-showcase/compliance_suite_errors_test.go:25:2: other import of "github.com/googleapis/gapic-showcase/server/genproto"
cmd/gapic-showcase/compliance_suite_test.go:19:2: "io/ioutil" has been deprecated since Go 1.19: As of Go 1.16, the same functionality is now provided by package [io] or package [os], and those implementations should be preferred in new code. See the specific function documentation for details.  (SA1019)
cmd/gapic-showcase/compliance_suite_test.go:29:2: package "github.com/googleapis/gapic-showcase/server/genproto" is being imported more than once (ST1019)
	cmd/gapic-showcase/compliance_suite_test.go:30:2: other import of "github.com/googleapis/gapic-showcase/server/genproto"
cmd/gapic-showcase/connect.go:14:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/create-blurb.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/create-blurb.go:81:3: this value of in is never used (SA4006)
cmd/gapic-showcase/create-blurb.go:105:12: error strings should not be capitalized (ST1005)
cmd/gapic-showcase/create-blurb.go:117:12: error strings should not be capitalized (ST1005)
cmd/gapic-showcase/create-room.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/create-room.go:51:3: this value of in is never used (SA4006)
cmd/gapic-showcase/create-sequence.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/create-sequence.go:40:3: empty branch (SA9003)
cmd/gapic-showcase/create-sequence.go:47:3: this value of in is never used (SA4006)
cmd/gapic-showcase/create-session.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/create-session.go:44:3: empty branch (SA9003)
cmd/gapic-showcase/create-session.go:51:3: this value of in is never used (SA4006)
cmd/gapic-showcase/create-streaming-sequence.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/create-streaming-sequence.go:42:3: empty branch (SA9003)
cmd/gapic-showcase/create-streaming-sequence.go:49:3: this value of in is never used (SA4006)
cmd/gapic-showcase/create-user.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/create-user.go:69:3: this value of in is never used (SA4006)
cmd/gapic-showcase/delete-blurb.go:10:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/delete-blurb.go:43:3: this value of in is never used (SA4006)
cmd/gapic-showcase/delete-room.go:10:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/delete-room.go:43:3: this value of in is never used (SA4006)
cmd/gapic-showcase/delete-session.go:10:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/delete-session.go:34:3: empty branch (SA9003)
cmd/gapic-showcase/delete-session.go:41:3: this value of in is never used (SA4006)
cmd/gapic-showcase/delete-test.go:10:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/delete-test.go:34:3: empty branch (SA9003)
cmd/gapic-showcase/delete-test.go:41:3: this value of in is never used (SA4006)
cmd/gapic-showcase/delete-user.go:10:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/delete-user.go:43:3: this value of in is never used (SA4006)
cmd/gapic-showcase/echo-error-details.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/echo-error-details.go:38:3: empty branch (SA9003)
cmd/gapic-showcase/echo-error-details.go:45:3: this value of in is never used (SA4006)
cmd/gapic-showcase/echo.go:14:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/echo.go:83:3: this value of in is never used (SA4006)
cmd/gapic-showcase/echo.go:107:12: error strings should not be capitalized (ST1005)
cmd/gapic-showcase/echo_service.go:72:12: error strings should not be capitalized (ST1005)
cmd/gapic-showcase/endpoint.go:22:2: "io/ioutil" has been deprecated since Go 1.19: As of Go 1.16, the same functionality is now provided by package [io] or package [os], and those implementations should be preferred in new code. See the specific function documentation for details.  (SA1019)
cmd/gapic-showcase/endpoint.go:38:8: "google.golang.org/genproto/googleapis/iam/v1" is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb. Please read https://github.com/googleapis/google-cloud-go/blob/main/migration.md for more details.  (SA1019)
cmd/gapic-showcase/endpoint.go:39:8: "google.golang.org/genproto/googleapis/longrunning" is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb. Please read https://github.com/googleapis/google-cloud-go/blob/main/migration.md for more details.  (SA1019)
cmd/gapic-showcase/endpoint.go:256:2: lropb.RegisterOperationsServer is deprecated: Please use funcs in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
cmd/gapic-showcase/endpoint.go:258:2: iampb.RegisterIAMPolicyServer is deprecated: Please use funcs in: cloud.google.com/go/iam/apiv1/iampb  (SA1019)
cmd/gapic-showcase/endpoint_test.go:18:2: "io/ioutil" has been deprecated since Go 1.19: As of Go 1.16, the same functionality is now provided by package [io] or package [os], and those implementations should be preferred in new code. See the specific function documentation for details.  (SA1019)
cmd/gapic-showcase/expand.go:16:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/expand.go:60:3: empty branch (SA9003)
cmd/gapic-showcase/expand.go:67:3: this value of in is never used (SA4006)
cmd/gapic-showcase/gapic-showcase.go:11:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/gapic-showcase.go:12:2: "github.com/golang/protobuf/proto" is deprecated: Use the "google.golang.org/protobuf/proto" package instead.  (SA1019)
cmd/gapic-showcase/get-blurb.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/get-blurb.go:45:3: this value of in is never used (SA4006)
cmd/gapic-showcase/get-enum.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/get-enum.go:36:3: empty branch (SA9003)
cmd/gapic-showcase/get-enum.go:43:3: this value of in is never used (SA4006)
cmd/gapic-showcase/get-room.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/get-room.go:45:3: this value of in is never used (SA4006)
cmd/gapic-showcase/get-sequence-report.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/get-sequence-report.go:45:3: this value of in is never used (SA4006)
cmd/gapic-showcase/get-session.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/get-session.go:36:3: empty branch (SA9003)
cmd/gapic-showcase/get-session.go:43:3: this value of in is never used (SA4006)
cmd/gapic-showcase/get-streaming-sequence-report.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/get-streaming-sequence-report.go:45:3: this value of in is never used (SA4006)
cmd/gapic-showcase/get-user.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/get-user.go:45:3: this value of in is never used (SA4006)
cmd/gapic-showcase/identity_service.go:67:12: error strings should not be capitalized (ST1005)
cmd/gapic-showcase/list-blurbs.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/list-blurbs.go:51:3: this value of in is never used (SA4006)
cmd/gapic-showcase/list-rooms.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/list-rooms.go:40:3: empty branch (SA9003)
cmd/gapic-showcase/list-rooms.go:47:3: this value of in is never used (SA4006)
cmd/gapic-showcase/list-sessions.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/list-sessions.go:40:3: empty branch (SA9003)
cmd/gapic-showcase/list-sessions.go:47:3: this value of in is never used (SA4006)
cmd/gapic-showcase/list-tests.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/list-tests.go:42:3: empty branch (SA9003)
cmd/gapic-showcase/list-tests.go:49:3: this value of in is never used (SA4006)
cmd/gapic-showcase/list-users.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/list-users.go:40:3: empty branch (SA9003)
cmd/gapic-showcase/list-users.go:47:3: this value of in is never used (SA4006)
cmd/gapic-showcase/messaging_service.go:76:12: error strings should not be capitalized (ST1005)
cmd/gapic-showcase/paged-expand-legacy-mapped.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/paged-expand-legacy-mapped.go:51:3: this value of in is never used (SA4006)
cmd/gapic-showcase/paged-expand.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/paged-expand.go:51:3: this value of in is never used (SA4006)
cmd/gapic-showcase/repeat-data-body-info.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/repeat-data-body-info.go:218:3: empty branch (SA9003)
cmd/gapic-showcase/repeat-data-body-info.go:225:3: this value of in is never used (SA4006)
cmd/gapic-showcase/repeat-data-body-patch.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/repeat-data-body-patch.go:218:3: empty branch (SA9003)
cmd/gapic-showcase/repeat-data-body-patch.go:225:3: this value of in is never used (SA4006)
cmd/gapic-showcase/repeat-data-body-put.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/repeat-data-body-put.go:218:3: empty branch (SA9003)
cmd/gapic-showcase/repeat-data-body-put.go:225:3: this value of in is never used (SA4006)
cmd/gapic-showcase/repeat-data-body.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/repeat-data-body.go:218:3: empty branch (SA9003)
cmd/gapic-showcase/repeat-data-body.go:225:3: this value of in is never used (SA4006)
cmd/gapic-showcase/repeat-data-path-resource.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/repeat-data-path-resource.go:218:3: empty branch (SA9003)
cmd/gapic-showcase/repeat-data-path-resource.go:225:3: this value of in is never used (SA4006)
cmd/gapic-showcase/repeat-data-path-trailing-resource.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/repeat-data-path-trailing-resource.go:218:3: empty branch (SA9003)
cmd/gapic-showcase/repeat-data-path-trailing-resource.go:225:3: this value of in is never used (SA4006)
cmd/gapic-showcase/repeat-data-query.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/repeat-data-query.go:218:3: empty branch (SA9003)
cmd/gapic-showcase/repeat-data-query.go:225:3: this value of in is never used (SA4006)
cmd/gapic-showcase/repeat-data-simple-path.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/repeat-data-simple-path.go:218:3: empty branch (SA9003)
cmd/gapic-showcase/repeat-data-simple-path.go:225:3: this value of in is never used (SA4006)
cmd/gapic-showcase/report-session.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/report-session.go:36:3: empty branch (SA9003)
cmd/gapic-showcase/report-session.go:43:3: this value of in is never used (SA4006)
cmd/gapic-showcase/run.go:41:38: os.Kill cannot be trapped (did you mean syscall.SIGTERM?) (SA1016)
cmd/gapic-showcase/search-blurbs.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/search-blurbs.go:65:3: this value of in is never used (SA4006)
cmd/gapic-showcase/search-blurbs.go:148:4: should use fmt.Printf instead of fmt.Println(fmt.Sprintf(...)) (but don't forget the newline) (S1038)
cmd/gapic-showcase/search-blurbs.go:150:4: should use fmt.Printf instead of fmt.Println(fmt.Sprintf(...)) (but don't forget the newline) (S1038)
cmd/gapic-showcase/send-blurbs.go:14:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/sequence_service.go:68:12: error strings should not be capitalized (ST1005)
cmd/gapic-showcase/stream-blurbs.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/stream-blurbs.go:55:3: this value of in is never used (SA4006)
cmd/gapic-showcase/testing_service.go:70:12: error strings should not be capitalized (ST1005)
cmd/gapic-showcase/update-blurb.go:14:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/update-blurb.go:83:3: this value of in is never used (SA4006)
cmd/gapic-showcase/update-blurb.go:107:12: error strings should not be capitalized (ST1005)
cmd/gapic-showcase/update-blurb.go:119:12: error strings should not be capitalized (ST1005)
cmd/gapic-showcase/update-room.go:14:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/update-room.go:57:3: this value of in is never used (SA4006)
cmd/gapic-showcase/update-user.go:14:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/update-user.go:75:3: this value of in is never used (SA4006)
cmd/gapic-showcase/verify-enum.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/verify-enum.go:44:3: empty branch (SA9003)
cmd/gapic-showcase/verify-enum.go:51:3: this value of in is never used (SA4006)
cmd/gapic-showcase/verify-test.go:12:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/verify-test.go:38:3: empty branch (SA9003)
cmd/gapic-showcase/verify-test.go:45:3: this value of in is never used (SA4006)
cmd/gapic-showcase/wait.go:16:2: "github.com/golang/protobuf/jsonpb" is deprecated: Use the "google.golang.org/protobuf/encoding/protojson" package instead.  (SA1019)
cmd/gapic-showcase/wait.go:109:3: this value of in is never used (SA4006)
cmd/gapic-showcase/wait.go:133:12: error strings should not be capitalized (ST1005)
cmd/gapic-showcase/wait.go:145:12: error strings should not be capitalized (ST1005)
cmd/gapic-showcase/wait.go:229:4: should use fmt.Printf instead of fmt.Println(fmt.Sprintf(...)) (but don't forget the newline) (S1038)
cmd/gapic-showcase/wait.go:231:4: should use fmt.Printf instead of fmt.Println(fmt.Sprintf(...)) (but don't forget the newline) (S1038)
server/services/echo_service.go:26:2: "github.com/golang/protobuf/ptypes" is deprecated: Well-known types have specialized functionality directly injected into the generated packages for each message type. See the deprecation notice for each function for the suggested alternative.  (SA1019)
server/services/echo_service.go:29:8: "google.golang.org/genproto/googleapis/longrunning" is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb. Please read https://github.com/googleapis/google-cloud-go/blob/main/migration.md for more details.  (SA1019)
server/services/echo_service.go:264:74: lropb.Operation is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/echo_service.go:271:10: ptypes.Duration is deprecated: Call the dur.AsDuration and dur.CheckValid methods instead.  (SA1019)
server/services/echo_service_test.go:27:2: "github.com/golang/protobuf/proto" is deprecated: Use the "google.golang.org/protobuf/proto" package instead.  (SA1019)
server/services/echo_service_test.go:28:2: "github.com/golang/protobuf/ptypes" is deprecated: Well-known types have specialized functionality directly injected into the generated packages for each message type. See the deprecation notice for each function for the suggested alternative.  (SA1019)
server/services/echo_service_test.go:824:16: ptypes.TimestampProto is deprecated: Call the timestamppb.New function instead.  (SA1019)
server/services/iam_policy_service.go:21:2: "github.com/golang/protobuf/proto" is deprecated: Use the "google.golang.org/protobuf/proto" package instead.  (SA1019)
server/services/iam_policy_service.go:22:8: "google.golang.org/genproto/googleapis/iam/v1" is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb. Please read https://github.com/googleapis/google-cloud-go/blob/main/migration.md for more details.  (SA1019)
server/services/iam_policy_service.go:32:27: iampb.IAMPolicyServer is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb  (SA1019)
server/services/iam_policy_service.go:34:25: iampb.Policy is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb  (SA1019)
server/services/iam_policy_service.go:42:23: iampb.Policy is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb  (SA1019)
server/services/iam_policy_service.go:46:69: iampb.GetIamPolicyRequest is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb  (SA1019)
server/services/iam_policy_service.go:46:98: iampb.Policy is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb  (SA1019)
server/services/iam_policy_service.go:60:15: iampb.Policy is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb  (SA1019)
server/services/iam_policy_service.go:64:69: iampb.SetIamPolicyRequest is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb  (SA1019)
server/services/iam_policy_service.go:64:98: iampb.Policy is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb  (SA1019)
server/services/iam_policy_service.go:76:15: iampb.Policy is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb  (SA1019)
server/services/iam_policy_service.go:83:75: iampb.TestIamPermissionsRequest is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb  (SA1019)
server/services/iam_policy_service.go:83:110: iampb.TestIamPermissionsResponse is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb  (SA1019)
server/services/iam_policy_service.go:95:10: iampb.TestIamPermissionsResponse is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb  (SA1019)
server/services/iam_policy_service_test.go:23:8: "google.golang.org/genproto/googleapis/iam/v1" is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb. Please read https://github.com/googleapis/google-cloud-go/blob/main/migration.md for more details.  (SA1019)
server/services/iam_policy_service_test.go:31:13: iampb.Policy is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb  (SA1019)
server/services/iam_policy_service_test.go:33:16: iampb.Binding is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb  (SA1019)
server/services/iam_policy_service_test.go:39:50: iampb.SetIamPolicyRequest is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb  (SA1019)
server/services/iam_policy_service_test.go:48:49: iampb.GetIamPolicyRequest is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb  (SA1019)
server/services/iam_policy_service_test.go:57:58: iampb.TestIamPermissionsRequest is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb  (SA1019)
server/services/iam_policy_service_test.go:87:53: iampb.GetIamPolicyRequest is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb  (SA1019)
server/services/iam_policy_service_test.go:115:53: iampb.SetIamPolicyRequest is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb  (SA1019)
server/services/iam_policy_service_test.go:143:59: iampb.TestIamPermissionsRequest is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb  (SA1019)
server/services/identity_service.go:22:2: "github.com/golang/protobuf/proto" is deprecated: Use the "google.golang.org/protobuf/proto" package instead.  (SA1019)
server/services/identity_service.go:23:2: "github.com/golang/protobuf/ptypes" is deprecated: Well-known types have specialized functionality directly injected into the generated packages for each message type. See the deprecation notice for each function for the suggested alternative.  (SA1019)
server/services/identity_service.go:77:9: ptypes.TimestampNow is deprecated: Call the timestamppb.Now function instead.  (SA1019)
server/services/identity_service.go:133:23: ptypes.TimestampNow is deprecated: Call the timestamppb.Now function instead.  (SA1019)
server/services/identity_service_test.go:23:2: "github.com/golang/protobuf/proto" is deprecated: Use the "google.golang.org/protobuf/proto" package instead.  (SA1019)
server/services/identity_service_test.go:122:2: this value of err is never used (SA4006)
server/services/identity_service_test.go:135:2: this value of err is never used (SA4006)
server/services/identity_service_test.go:211:2: this value of u is never used (SA4006)
server/services/messaging_service.go:27:2: "github.com/golang/protobuf/proto" is deprecated: Use the "google.golang.org/protobuf/proto" package instead.  (SA1019)
server/services/messaging_service.go:28:2: "github.com/golang/protobuf/ptypes" is deprecated: Well-known types have specialized functionality directly injected into the generated packages for each message type. See the deprecation notice for each function for the suggested alternative.  (SA1019)
server/services/messaging_service.go:32:2: "google.golang.org/genproto/googleapis/longrunning" is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb. Please read https://github.com/googleapis/google-cloud-go/blob/main/migration.md for more details.  (SA1019)
server/services/messaging_service.go:128:9: ptypes.TimestampNow is deprecated: Call the timestamppb.Now function instead.  (SA1019)
server/services/messaging_service.go:196:23: ptypes.TimestampNow is deprecated: Call the timestamppb.Now function instead.  (SA1019)
server/services/messaging_service.go:298:9: ptypes.TimestampNow is deprecated: Call the timestamppb.Now function instead.  (SA1019)
server/services/messaging_service.go:366:23: ptypes.TimestampNow is deprecated: Call the timestamppb.Now function instead.  (SA1019)
server/services/messaging_service.go:457:95: longrunning.Operation is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/messaging_service.go:467:13: ptypes.MarshalAny is deprecated: Call the anypb.New function instead.  (SA1019)
server/services/messaging_service.go:470:17: ptypes.DurationProto is deprecated: Call the durationpb.New function instead.  (SA1019)
server/services/messaging_service.go:474:10: longrunning.Operation is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/messaging_service.go:485:21: ptypes.Timestamp is deprecated: Call the ts.AsTime and ts.CheckValid methods instead.  (SA1019)
server/services/messaging_service.go:541:18: ptypes.MarshalAny is deprecated: Call the anypb.New function instead.  (SA1019)
server/services/messaging_service.go:643:2: field parent is unused (U1000)
server/services/messaging_service_test.go:27:2: "github.com/golang/protobuf/proto" is deprecated: Use the "google.golang.org/protobuf/proto" package instead.  (SA1019)
server/services/messaging_service_test.go:28:2: "github.com/golang/protobuf/ptypes" is deprecated: Well-known types have specialized functionality directly injected into the generated packages for each message type. See the deprecation notice for each function for the suggested alternative.  (SA1019)
server/services/messaging_service_test.go:108:2: this value of err is never used (SA4006)
server/services/messaging_service_test.go:121:2: this value of err is never used (SA4006)
server/services/messaging_service_test.go:849:18: ptypes.TimestampProto is deprecated: Call the timestamppb.New function instead.  (SA1019)
server/services/messaging_service_test.go:1038:18: ptypes.TimestampProto is deprecated: Call the timestamppb.New function instead.  (SA1019)
server/services/messaging_service_test.go:1123:18: ptypes.TimestampProto is deprecated: Call the timestamppb.New function instead.  (SA1019)
server/services/messaging_service_test.go:1312:2: ptypes.UnmarshalAny is deprecated: Call the any.UnmarshalTo method instead.  (SA1019)
server/services/messaging_service_test.go:1385:2: ptypes.UnmarshalAny is deprecated: Call the any.UnmarshalTo method instead.  (SA1019)
server/services/messaging_service_test.go:1445:2: ptypes.UnmarshalAny is deprecated: Call the any.UnmarshalTo method instead.  (SA1019)
server/services/messaging_service_test.go:1470:2: field nextMu is unused (U1000)
server/services/messaging_service_test.go:1730:2: field respMu is unused (U1000)
server/services/messaging_service_test.go:1733:2: field nextMu is unused (U1000)
server/services/operations_service.go:25:2: "github.com/golang/protobuf/proto" is deprecated: Use the "google.golang.org/protobuf/proto" package instead.  (SA1019)
server/services/operations_service.go:26:2: "github.com/golang/protobuf/ptypes" is deprecated: Well-known types have specialized functionality directly injected into the generated packages for each message type. See the deprecation notice for each function for the suggested alternative.  (SA1019)
server/services/operations_service.go:30:8: "google.golang.org/genproto/googleapis/longrunning" is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb. Please read https://github.com/googleapis/google-cloud-go/blob/main/migration.md for more details.  (SA1019)
server/services/operations_service.go:36:59: lropb.OperationsServer is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service.go:45:70: lropb.GetOperationRequest is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service.go:45:99: lropb.Operation is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service.go:55:47: lropb.GetOperationRequest is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service.go:55:76: lropb.Operation is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service.go:76:55: lropb.GetOperationRequest is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service.go:76:84: lropb.Operation is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service.go:96:2: this value of err is never used (SA4006)
server/services/operations_service.go:105:13: lropb.Operation is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service.go:110:13: ptypes.MarshalAny is deprecated: Call the anypb.New function instead.  (SA1019)
server/services/operations_service.go:123:7: should use strings.Contains(b.GetText(), s) instead (S1003)
server/services/operations_service.go:132:72: lropb.CancelOperationRequest is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service.go:140:71: lropb.ListOperationsRequest is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service.go:140:102: lropb.ListOperationsResponse is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service.go:145:20: lropb.Operation is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service.go:152:37: lropb.Operation is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service.go:159:36: lropb.Operation is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service.go:165:10: lropb.ListOperationsResponse is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service.go:171:72: lropb.DeleteOperationRequest is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service.go:179:70: lropb.WaitOperationRequest is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service.go:179:100: lropb.Operation is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service.go:191:10: lropb.Operation is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service_test.go:24:2: "github.com/golang/protobuf/proto" is deprecated: Use the "google.golang.org/protobuf/proto" package instead.  (SA1019)
server/services/operations_service_test.go:25:2: "github.com/golang/protobuf/ptypes" is deprecated: Well-known types have specialized functionality directly injected into the generated packages for each message type. See the deprecation notice for each function for the suggested alternative.  (SA1019)
server/services/operations_service_test.go:28:8: "google.golang.org/genproto/googleapis/longrunning" is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb. Please read https://github.com/googleapis/google-cloud-go/blob/main/migration.md for more details.  (SA1019)
server/services/operations_service_test.go:34:16: ptypes.TimestampProto is deprecated: Call the timestamppb.New function instead.  (SA1019)
server/services/operations_service_test.go:37:10: lropb.GetOperationRequest is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service_test.go:123:10: lropb.GetOperationRequest is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service_test.go:166:2: ptypes.UnmarshalAny is deprecated: Call the any.UnmarshalTo method instead.  (SA1019)
server/services/operations_service_test.go:186:10: lropb.GetOperationRequest is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service_test.go:203:11: lropb.GetOperationRequest is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service_test.go:225:11: lropb.GetOperationRequest is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service_test.go:239:58: lropb.CancelOperationRequest is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service_test.go:249:58: lropb.CancelOperationRequest is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service_test.go:258:59: lropb.ListOperationsRequest is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service_test.go:268:58: lropb.ListOperationsRequest is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service_test.go:285:57: lropb.ListOperationsRequest is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service_test.go:294:58: lropb.DeleteOperationRequest is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service_test.go:304:58: lropb.DeleteOperationRequest is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service_test.go:316:59: lropb.WaitOperationRequest is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/operations_service_test.go:336:56: lropb.WaitOperationRequest is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/sequence_service.go:24:2: "github.com/golang/protobuf/ptypes" is deprecated: Well-known types have specialized functionality directly injected into the generated packages for each message type. See the deprecation notice for each function for the suggested alternative.  (SA1019)
server/services/sequence_service.go:96:14: ptypes.TimestampProto is deprecated: Call the timestamppb.New function instead.  (SA1019)
server/services/sequence_service.go:128:14: ptypes.DurationProto is deprecated: Call the durationpb.New function instead.  (SA1019)
server/services/sequence_service.go:133:14: ptypes.TimestampProto is deprecated: Call the timestamppb.New function instead.  (SA1019)
server/services/sequence_service.go:271:14: ptypes.DurationProto is deprecated: Call the durationpb.New function instead.  (SA1019)
server/services/sequence_service.go:276:14: ptypes.TimestampProto is deprecated: Call the timestamppb.New function instead.  (SA1019)
server/services/sequence_service_test.go:24:2: "github.com/golang/protobuf/ptypes" is deprecated: Well-known types have specialized functionality directly injected into the generated packages for each message type. See the deprecation notice for each function for the suggested alternative.  (SA1019)
server/services/sequence_service_test.go:77:12: ptypes.DurationProto is deprecated: Call the durationpb.New function instead.  (SA1019)
server/services/sequence_service_test.go:81:12: ptypes.DurationProto is deprecated: Call the durationpb.New function instead.  (SA1019)
server/services/sequence_service_test.go:251:30: func (*mockStreamSequence).verify is unused (U1000)
server/services/sequence_service_test.go:297:12: ptypes.DurationProto is deprecated: Call the durationpb.New function instead.  (SA1019)
server/services/sequence_service_test.go:301:12: ptypes.DurationProto is deprecated: Call the durationpb.New function instead.  (SA1019)
server/services/sequence_service_test.go:362:12: ptypes.DurationProto is deprecated: Call the durationpb.New function instead.  (SA1019)
server/services/sequence_service_test.go:366:12: ptypes.DurationProto is deprecated: Call the durationpb.New function instead.  (SA1019)
server/services/services.go:24:8: "google.golang.org/genproto/googleapis/iam/v1" is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb. Please read https://github.com/googleapis/google-cloud-go/blob/main/migration.md for more details.  (SA1019)
server/services/services.go:25:8: "google.golang.org/genproto/googleapis/longrunning" is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb. Please read https://github.com/googleapis/google-cloud-go/blob/main/migration.md for more details.  (SA1019)
server/services/services.go:40:19: lropb.OperationsServer is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/services.go:42:19: iampb.IAMPolicyServer is deprecated: Please use types in: cloud.google.com/go/iam/apiv1/iampb  (SA1019)
server/services/test_common.go:19:8: "google.golang.org/genproto/googleapis/longrunning" is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb. Please read https://github.com/googleapis/google-cloud-go/blob/main/migration.md for more details.  (SA1019)
server/services/test_common.go:28:49: lropb.Operation is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/services/testing_service.go:33:10: unnecessary use of fmt.Sprintf (S1039)
server/services/testing_service_test.go:22:2: "github.com/golang/protobuf/proto" is deprecated: Use the "google.golang.org/protobuf/proto" package instead.  (SA1019)
server/services/testing_service_test.go:77:2: this value of err is never used (SA4006)
server/services/testing_service_test.go:90:2: this value of err is never used (SA4006)
server/session_test.go:21:2: "github.com/golang/protobuf/proto" is deprecated: Use the "google.golang.org/protobuf/proto" package instead.  (SA1019)
server/spec/v1/unary.go:23:2: "github.com/golang/protobuf/proto" is deprecated: Use the "google.golang.org/protobuf/proto" package instead.  (SA1019)
server/spec/v1/unary_test.go:21:2: "github.com/golang/protobuf/proto" is deprecated: Use the "google.golang.org/protobuf/proto" package instead.  (SA1019)
server/waiter.go:22:2: "github.com/golang/protobuf/proto" is deprecated: Use the "google.golang.org/protobuf/proto" package instead.  (SA1019)
server/waiter.go:23:2: "github.com/golang/protobuf/ptypes" is deprecated: Well-known types have specialized functionality directly injected into the generated packages for each message type. See the deprecation notice for each function for the suggested alternative.  (SA1019)
server/waiter.go:25:8: "google.golang.org/genproto/googleapis/longrunning" is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb. Please read https://github.com/googleapis/google-cloud-go/blob/main/migration.md for more details.  (SA1019)
server/waiter.go:39:29: lropb.Operation is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/waiter.go:46:49: lropb.Operation is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/waiter.go:49:18: ptypes.Duration is deprecated: Call the dur.AsDuration and dur.CheckValid methods instead.  (SA1019)
server/waiter.go:53:16: ptypes.Timestamp is deprecated: Call the ts.AsTime and ts.CheckValid methods instead.  (SA1019)
server/waiter.go:55:21: ptypes.TimestampProto is deprecated: Call the timestamppb.New function instead.  (SA1019)
server/waiter.go:65:13: lropb.Operation is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
server/waiter.go:75:14: ptypes.MarshalAny is deprecated: Call the anypb.New function instead.  (SA1019)
server/waiter.go:80:14: ptypes.MarshalAny is deprecated: Call the anypb.New function instead.  (SA1019)
server/waiter_test.go:23:2: "github.com/golang/protobuf/proto" is deprecated: Use the "google.golang.org/protobuf/proto" package instead.  (SA1019)
server/waiter_test.go:24:2: "github.com/golang/protobuf/ptypes" is deprecated: Well-known types have specialized functionality directly injected into the generated packages for each message type. See the deprecation notice for each function for the suggested alternative.  (SA1019)
server/waiter_test.go:27:8: "google.golang.org/genproto/googleapis/longrunning" is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb. Please read https://github.com/googleapis/google-cloud-go/blob/main/migration.md for more details.  (SA1019)
server/waiter_test.go:53:10: ptypes.DurationProto is deprecated: Call the durationpb.New function instead.  (SA1019)
server/waiter_test.go:73:3: ptypes.UnmarshalAny is deprecated: Call the any.UnmarshalTo method instead.  (SA1019)
server/waiter_test.go:113:2: ptypes.UnmarshalAny is deprecated: Call the any.UnmarshalTo method instead.  (SA1019)
server/waiter_test.go:150:11: ptypes.TimestampProto is deprecated: Call the timestamppb.New function instead.  (SA1019)
server/waiter_test.go:154:55: lropb.Operation is deprecated: Please use types in: cloud.google.com/go/longrunning/autogen/longrunningpb  (SA1019)
util/compile_protos.go:19:2: "io/ioutil" has been deprecated since Go 1.19: As of Go 1.16, the same functionality is now provided by package [io] or package [os], and those implementations should be preferred in new code. See the specific function documentation for details.  (SA1019)
util/genrest/gomodel/gomodel.go:90:23: error strings should not end with punctuation or newlines (ST1005)
util/genrest/goviewcreator_test.go:18:2: "io/ioutil" has been deprecated since Go 1.19: As of Go 1.16, the same functionality is now provided by package [io] or package [os], and those implementations should be preferred in new code. See the specific function documentation for details.  (SA1019)
util/genrest/internal/pbinfo/pbinfo.go:28:2: "github.com/golang/protobuf/proto" is deprecated: Use the "google.golang.org/protobuf/proto" package instead.  (SA1019)
util/genrest/protomodelcreator.go:19:2: "io/ioutil" has been deprecated since Go 1.19: As of Go 1.16, the same functionality is now provided by package [io] or package [os], and those implementations should be preferred in new code. See the specific function documentation for details.  (SA1019)
util/genrest/resttools/checkrequestformat.go:21:2: "io/ioutil" has been deprecated since Go 1.19: As of Go 1.16, the same functionality is now provided by package [io] or package [os], and those implementations should be preferred in new code. See the specific function documentation for details.  (SA1019)
util/genrest/resttools/keysmatching.go:29:11: unnecessary assignment to the blank identifier (S1005)