docs: def get_data(ctx, study, environment, subject):
      """
      Call rwscmd_getdata custom dataset to retrieve currently enterable, empty fields
      """
      cfg = GetDataConfigurableDataset(GET_DATA_DATASET,
                                       study,
                                       environment,
                                       subject,
                                       params=dict(IncludeIDs=0,
                                                   IncludeValues=0))
      # path = "datasets/{}?StudyOID={}&SubjectKey={}" \
      #        "&IncludeIDs=0&IncludeValues=0".format(GET_DATA_DATASET, studyoid, subject)
      # url = make_url(ctx.obj['RWS'].base_url, path)
  
      if ctx.obj['VERBOSE']:
          click.echo('Getting data list')
      # Get the client instance
      client = ctx.obj['RWS']  #: type: RWSConnection
      # Client rolls in the base_url
      resp = client.send_request(cfg)
      # resp = requests.get(url, auth=HTTPBasicAuth(ctx.obj['USERNAME'], ctx.obj['PASSWORD']))
  
      if client.last_result.status_code != 200:
          click.echo(client.last_result.text)
  
      return xml_pretty_print(resp)