From 74c98a883d3580728619653664f52b4fff224f1f Mon Sep 17 00:00:00 2001
From: Brandon Kalinowski <brandon@brandonkalinowski.com>
Date: Wed, 10 Jul 2019 16:42:49 -0700
Subject: [PATCH] fix: expose private implementation

---
 src/react/styled.ts | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/react/styled.ts b/src/react/styled.ts
index 9dbb74beb..8753a2381 100644
--- a/src/react/styled.ts
+++ b/src/react/styled.ts
@@ -146,7 +146,12 @@ type AsProp = { as?: React.ElementType };
  * ``const Dialog = styled.div` ${Button} { color: red; } ``
  * Without the _isStyled type, Button's properties could appear on Dialog which would be incorrect.
  */
-type _isStyled = { __linaria: true };
+type _isStyled = {
+  __linaria: {
+    className: string;
+    extends: React.ComponentType<any> | string;
+  };
+};
 
 export type StyledComponent<Tag, ExtraProps> = React.FunctionComponent<
   GetProps<Tag> & AsProp & ExtraProps