code: def reset_functions(self, r):
      r.function_flush()
  
file_path: redis-py/tests/test_function.py
imports: import pytest
  from redis.exceptions import ResponseError
  from .conftest import assert_resp_response, skip_if_server_version_lt
label_desc: Use image node_id 1 for calling the TestFunction obj's underlying member method code with example usage: obj.reset_functions(r) without return types