<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def get_module_config(self, name):
 """ Return module configuration loaded from separate file or None """

    if self.exists("modules"):
      if name in self._json["modules"] and not isinstance(self._json["modules"][name], str):
        return self._json["modules"][name]
    return None