<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _create_extractors(col_params):
 """Creates extractors to extract properties corresponding to 'col_params'. Args: col_params: List of ListSessionGroupsRequest.ColParam protobufs. Returns: A list of extractor functions. The ith element in the returned list extracts the column corresponding to the ith element of _request.col_params """

  result = []
  for col_param in col_params:
    result.append(_create_extractor(col_param))
  return result