code: def schema_from_json(self, file_or_path):
          
          if isinstance(file_or_path, io.IOBase):
              return self._schema_from_json_file_object(file_or_path)
  
          with open(file_or_path) as file_obj:
              return self._schema_from_json_file_object(file_obj)
docs: Takes a file object or file path that contains json that describes
          a table schema.
  
          Returns:
              List of schema field objects.