docs: def subjects_create(self, filename, api_url=None, properties=None):
          """Create new anatomy subject at given SCO-API by uploading local file.
          Expects an tar-archive containing a FreeSurfer anatomy.
  
          Parameters
          ----------
          filename : string
              Path to tar-archive on local disk
          api_url : string, optional
              Base Url of SCO-API where subject will be created
          properties : Dictionary, optional
              Set of additional properties for created subject
  
          Returns
          -------
          scoserv.SubjectHandle
              Handle for local copy of created image group resource
          """
          # Create image group and return handle for created resource
          return self.subjects_get(
              SubjectHandle.create(
                  self.get_api_references(api_url)[sco.REF_SUBJECTS_CREATE],
                  filename,
                  properties
              )
          )