Fix the pyopenapi generator avoid potential circular imports

docs/openapi_generator/generate.py

@@ -33,10 +33,8 @@ schema_utils.json_schema_type = json_schema_type
 
 # this line needs to be here to ensure json_schema_type has been altered before
 # the imports use the annotation
-from llama_stack.distribution.stack import (  # noqa: E402
+from llama_stack.apis.version import LLAMA_STACK_API_VERSION  # noqa: E402
-    LLAMA_STACK_API_VERSION,
+from llama_stack.distribution.stack import LlamaStack  # noqa: E402
-    LlamaStack,
-)
 
 
 def main(output_dir: str):

docs/openapi_generator/pyopenapi/generator.py

@@ -204,7 +204,7 @@ class ContentBuilder:
         if self.schema_transformer:
             schema_transformer: Callable[[SchemaOrRef], SchemaOrRef] = (
                 self.schema_transformer
-            )  # type: ignore
+            )
             schema = schema_transformer(schema)
 
         if not examples:

docs/openapi_generator/pyopenapi/operations.py

@@ -12,7 +12,7 @@ import uuid
 from dataclasses import dataclass
 from typing import Any, Callable, Dict, Iterable, Iterator, List, Optional, Tuple, Union
 
-from llama_stack.distribution.stack import LLAMA_STACK_API_VERSION
+from llama_stack.apis.version import LLAMA_STACK_API_VERSION
 
 from termcolor import colored
 

llama_stack/apis/version.py

@@ -0,0 +1,7 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+LLAMA_STACK_API_VERSION = "alpha"