refactor(tools): propagate preserve_property_names through load and from_parsed_operation

Author: yuvrajangadsingh

src/google/adk/tools/openapi_tool/openapi_spec_parser/openapi_toolset.py

@@ -237,6 +237,7 @@ def _parse(self, openapi_spec_dict: Dict[str, Any]) -> List[RestApiTool]:
           o,
           ssl_verify=self._ssl_verify,
           header_provider=self._header_provider,
+          preserve_property_names=self._preserve_property_names,
       )
       logger.info("Parsed tool: %s", tool.name)
       tools.append(tool)

src/google/adk/tools/openapi_tool/openapi_spec_parser/operation_parser.py

@@ -81,8 +81,14 @@ def load(
       operation: Union[Operation, Dict[str, Any]],
       params: List[ApiParameter],
       return_value: Optional[ApiParameter] = None,
+      *,
+      preserve_property_names: bool = False,
   ) -> 'OperationParser':
-    parser = cls(operation, should_parse=False)
+    parser = cls(
+        operation,
+        should_parse=False,
+        preserve_property_names=preserve_property_names,
+    )
     parser._params = params
     parser._return_value = return_value
     return parser

src/google/adk/tools/openapi_tool/openapi_spec_parser/rest_api_tool.py

@@ -181,6 +181,7 @@ def from_parsed_operation(
       header_provider: Optional[
           Callable[[ReadonlyContext], Dict[str, str]]
       ] = None,
+      preserve_property_names: bool = False,
   ) -> "RestApiTool":
     """Initializes the RestApiTool from a ParsedOperation object.
 
@@ -192,12 +193,17 @@ def from_parsed_operation(
           an argument, allowing dynamic header generation based on the current
           context. Useful for adding custom headers like correlation IDs,
           authentication tokens, or other request metadata.
+        preserve_property_names: If True, preserve original property names
+          from the OpenAPI spec instead of converting to snake_case.
 
     Returns:
         A RestApiTool object.
     """
     operation_parser = OperationParser.load(
-        parsed.operation, parsed.parameters, parsed.return_value
+        parsed.operation,
+        parsed.parameters,
+        parsed.return_value,
+        preserve_property_names=preserve_property_names,
     )
 
     tool_name = _to_snake_case(operation_parser.get_function_name())