Don't try and keep _lines and text value private

README.md

@@ -56,7 +56,7 @@ Completions populate the cell with a custom data type which includes the complet
 
 To obtain the text value for use in formulas, use the `VALUETOTEXT()` function. To obtain other request/response data, use dot notation to the property path (e.g. `A123.response.model`).
 
-To view the completion data, open the entity card. The `_lines` property provides a line-by-line view of the completion content.
+To view the completion data, open the entity card. The `lines` property provides a line-by-line view of the completion content.
 
 To extract a final answer that follows a chain of thought, you could use a formula such as:
 

src/functions/functions.mjs

@@ -73,7 +73,7 @@ export async function chatComplete(messages, params, invocation) {
  _entityKind: COMPLETION_ENTITY_KIND,
 
  // For visibility of newlines without needing to use cell text wrap.
- _lines:
+ lines:
  json.choices.length === 1
  ? json.choices[0].message.content.split('\n')
  : json.choices.map((choice) => choice.message.content.split('\n')),

testFramework/completionEntityStub.mjs

@@ -8,14 +8,14 @@ export function makeCompletionEntity({
  type: 'Entity',
  basicType: 'Error',
  basicValue: '#VALUE!',
- text: undefined, // Not for programmatic use
+ text: content ?? '',
  properties: {
  _entityKind: {
  type: 'String',
  basicType: 'String',
  basicValue: 'openai-excel-functions:chat-completion',
  },
- _lines: undefined, // Not for programmatic use
+ lines: (content ?? '').split('\n'),
  requestBody: {
  type: 'Entity',
  basicType: 'Error',