Add RequestBodyJSON helper (#1458)

Author: drwpow

.changeset/nine-pigs-reply.md

@@ -0,0 +1,5 @@
+---
+"openapi-typescript-helpers": patch
+---
+
+Add RequestBodyJSON helper

packages/openapi-typescript-helpers/index.d.ts

@@ -78,6 +78,10 @@ export type SuccessResponseJSON<PathMethod> = JSONLike<
 export type ErrorResponseJSON<PathMethod> = JSONLike<
   ErrorResponse<ResponseObjectMap<PathMethod>>
 >;
+/** Return JSON-like request body from a path + HTTP method */
+export type RequestBodyJSON<PathMethod> = JSONLike<
+  ResponseContent<OperationRequestBody<PathMethod>>
+>;
 
 // Generic TS utils