human
I wrote the below code

    if threading:
        threading_mod = __import__('threading')
        orig_current_thread = threading_mod.current_thread()
    else:
        threading_mod = None
        orig_current_thread = None
    patch_module('thread')
    if threading:
        patch_module('threading')
        if Event:
            from gevent.event import Event
            patch_item(threading_mod, 'Event', Event)
        if existing_locks:
            _patch_existing_locks(threading_mod)
        if (logging and ('logging' in sys.modules)):
            logging = __import__('logging')
            patch_item(logging, '_lock', threading_mod.RLock())
            for wr in logging._handlerList:
                handler = (wr() if callable(wr) else wr)
                if (handler is None):
                    continue
                if (not hasattr(handler, 'lock')):
                    raise TypeError(('Unknown/unsupported    handler    %r' % handler))
                handler.lock = threading_mod.RLock()
    if _threading_local:
        _threading_local = __import__('_threading_local')
        from gevent.local import local
        patch_item(_threading_local, 'local', local)
    def make_join_func(thread, thread_greenlet):
        from gevent.hub import sleep
        from time import time
        def join(timeout=None):
            end = None
            if (threading_mod.current_thread() is thread):
                raise RuntimeError('Cannot    join    current    thread')
            if ((thread_greenlet is not None) and thread_greenlet.dead):
                return
            if (not thread.is_alive()):
                return
            if timeout:
                end = (time() + timeout)
            while thread.is_alive():
                if ((end is not None) and (time() > end)):
                    return
                sleep(0.01)
        return join
    if threading:
        from gevent.threading import main_native_thread
        for thread in threading_mod._active.values():
            if (thread == main_native_thread()):
 ...

What's a good function header?

=====
Here's a good function header?
assistant
#Here's a good function header.

def patch_thread(threading=True, _threading_local=True, Event=False, logging=True, existing_locks=True, _warnings=None):