docs: def createmeta(self,
                     projectKeys=None,
                     projectIds=[],
                     issuetypeIds=None,
                     issuetypeNames=None,
                     expand=None,
                     ):
          """Get the metadata required to create issues, optionally filtered by projects and issue types.
  
          :param projectKeys: keys of the projects to filter the results with.
              Can be a single value or a comma-delimited string. May be combined
              with projectIds.
          :type projectKeys: Union[None, Tuple[str, str], str]
          :param projectIds: IDs of the projects to filter the results with. Can
              be a single value or a comma-delimited string. May be combined with
              projectKeys.
          :type projectIds: Union[List, Tuple[str, str]]
          :param issuetypeIds: IDs of the issue types to filter the results with.
              Can be a single value or a comma-delimited string. May be combined
              with issuetypeNames.
          :type issuetypeIds: Optional[List[str]]
          :param issuetypeNames: Names of the issue types to filter the results
              with. Can be a single value or a comma-delimited string. May be
              combined with issuetypeIds.
          :type issuetypeNames: Optional[str]
          :param expand: extra information to fetch inside each resource.
          :type expand: Optional[str]
          :rtype: Dict[str, Any]
  
          """
          params = {}
          if projectKeys is not None:
              params['projectKeys'] = projectKeys
          if projectIds is not None:
              if isinstance(projectIds, string_types):
                  projectIds = projectIds.split(',')
              params['projectIds'] = projectIds
          if issuetypeIds is not None:
              params['issuetypeIds'] = issuetypeIds
          if issuetypeNames is not None:
              params['issuetypeNames'] = issuetypeNames
          if expand is not None:
              params['expand'] = expand
          return self._get_json('issue/createmeta', params)