code: def message_cli(subject, message_body, access_token, all_members=False,
                  project_member_ids=None, base_url=OH_BASE_URL,
                  verbose=False, debug=False):
      
      if project_member_ids:
          project_member_ids = re.split(r'[ ,\r\n]+', project_member_ids)
      return message(subject, message_body, access_token, all_members,
                     project_member_ids, base_url)
docs: Command line function for sending email to a single user or in bulk.
      For more information visit
      :func:`message<ohapi.api.message>`.