human
I wrote the below code

    def inner_commit_manually(func, db=None):
        def _commit_manually(*args, **kw):
            try:
                enter_transaction_management(using=db)
                managed(True, using=db)
                return func(*args, **kw)
            finally:
                leave_transaction_management(using=db)
        return wraps(func)(_commit_manually)
    if (using is None):
        using = DEFAULT_DB_ALIAS
    if callable(using):
        return inner_commit_manually(using, DEFAULT_DB_ALIAS)
    return (lambda func: inner_commit_manually(func, using))

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

def commit_manually(using=None):