@staticmethod<EOL><INDENT>def _handle_sigusr1(signum: int, frame: Any) -> None:<DEDENT>
print('<STR_LIT:=>' * <NUM_LIT>)<EOL>print('<STR_LIT>'.join(traceback.format_stack()))<EOL>print('<STR_LIT:->' * <NUM_LIT>)<EOL>
Print stacktrace.