code: def read(self, filehandle):
          
          input_str = filehandle.read()
          mwtab_str = self._is_mwtab(input_str)
          json_str = self._is_json(input_str)
  
          if not input_str:
              pass
          elif json_str:
              self.update(json_str)
          elif mwtab_str:
              self._build_mwtabfile(mwtab_str)
          else:
              raise TypeError("Unknown file format")
  
          self.study_id = self["METABOLOMICS WORKBENCH"].get("STUDY_ID")
          self.analysis_id = self["METABOLOMICS WORKBENCH"].get("ANALYSIS_ID")
          self.header = self["METABOLOMICS WORKBENCH"].get("HEADER")
  
          filehandle.close()
docs: Read data into a :class:`~mwtab.mwtab.MWTabFile` instance.
  
          :param filehandle: file-like object.
          :type filehandle: :py:class:`io.TextIOWrapper`, :py:class:`gzip.GzipFile`,
                            :py:class:`bz2.BZ2File`, :py:class:`zipfile.ZipFile`
          :return: None
          :rtype: :py:obj:`None`