[openapi-to-tsp] Node 20 produce different output for openai spec

[timotheeguerin]

AS part of upgrading dependencies and increaasing node versions noticed that in node 20 we get a different diff for openai spec. Some things become unknown

 model PathsMaorw9DeploymentsDeploymentIdCompletionsPostResponses200ContentApplicationJsonSchema {
   id?: string;
   object?: string;
@@ -189,7 +175,7 @@ model Paths13PiqocDeploymentsDeploymentIdEmbeddingsPostRequestbodyContentApplica
 An input to embed, encoded as a string, a list of strings, or a list of token
 lists
 """)
-  input: PostContentSchemaInput;
+  input: unknown;
 
   @doc("The ID of the end-user, for use in tracking and rate-limiting.")
   user?: string;
@@ -201,9 +187,3 @@ lists
   @doc("ID of the model to use")
   `model`?: string;
 }
-
-@doc("""
-An input to embed, encoded as a string, a list of strings, or a list of token
-lists
-""")
-model PostContentSchemaInput {}

[joheredi]

I can't reproduce this issue, here's what I did:

• Pulled main from upstream
• nvm use 20.8.1
• rush update
• cd packages/extensions/openapi-to-typespec
• rush build -t.
• rushx generate

But I don't see any diff and the converted TSP looks as expected

[joheredi]

Closing as I haven't been able to reproduce with the latest Node 20 version

[tadelesh]

my env with node v18.16.0 or node v20.11.0 all could reproduce this. no idea the root cause.

[tadelesh]

after upgrade core version and m4 version, this problem has been resolved. see: #4868.