def by_attribute_mapping_function_schema_id(self,attribute_mapping_function_schema_id: str) -> AttributeMappingFunctionSchemaItemRequestBuilder:
        """
        Provides operations to manage the collection of attributeMappingFunctionSchema entities.
        param attribute_mapping_function_schema_id: The unique identifier of attributeMappingFunctionSchema
        Returns: AttributeMappingFunctionSchemaItemRequestBuilder
        """
        if attribute_mapping_function_schema_id is None:
            raise TypeError("attribute_mapping_function_schema_id cannot be null.")
        from .item.attribute_mapping_function_schema_item_request_builder import AttributeMappingFunctionSchemaItemRequestBuilder

        url_tpl_params = get_path_parameters(self.path_parameters)
        url_tpl_params["attributeMappingFunctionSchema%2Did"] = attribute_mapping_function_schema_id
        return AttributeMappingFunctionSchemaItemRequestBuilder(self.request_adapter, url_tpl_params)

        Provides operations to manage the collection of attributeMappingFunctionSchema entities.
        param attribute_mapping_function_schema_id: The unique identifier of attributeMappingFunctionSchema
        Returns: AttributeMappingFunctionSchemaItemRequestBuilder
        
msgraph/generated/functions/functions_request_builder.py