def __call__()

in src/functions_framework/execution_id.py [0:0]


    def __call__(self, environ, start_response):
        execution_id = (
            environ.get("HTTP_FUNCTION_EXECUTION_ID") or _generate_execution_id()
        )
        environ["HTTP_FUNCTION_EXECUTION_ID"] = execution_id
        return self.wsgi_app(environ, start_response)