import json
from functools import wraps
from threading import Thread

def json_dumps(obj):
    return json.dumps(obj, indent=4, default=_to_json, ensure_ascii=False, sort_keys=True).encode()

def _to_json(python_object):
    if isinstance(python_object, datetime.datetime):
        if python_object.year < 1900:
            tt = python_object.timetuple()
            return '%d-%02d-%02dT%02d:%02d%02dZ' % tuple(list(tt)[:6])
        return python_object.strftime('%Y-%m-%dT%H:%M:%SZ')
    raise TypeError('%s %s is not JSON serializable' % (repr(python_object), type(python_object)))

def run_async(func):
    @wraps(func)
    def async_func(*args, **kwargs):
        func_hl = Thread(target=func, args=args, kwargs=kwargs)
        func_hl.start()
        return func_hl

    return async_func