def _read_metadata(self):
filetype = self.fp.readline().strip()<EOL>filetitle = self.fp.readline().strip()<EOL>try:<EOL><INDENT>filetype = str(filetype, '<STR_LIT:utf-8>')<EOL>filetitle = str(filetitle, '<STR_LIT:utf-8>')<EOL><DEDENT>except:<EOL><INDENT>pass<EOL><DEDENT>self.__setattr__('<STR_LIT>', filetype)<EOL>self.__setattr__('<STR_LIT>', filetitle)<EOL>
Read the main metadata packaged within a bpch file, indicating
        the output filetype and its title.