human
Complete the below
def DNSServiceBrowse(flags=0, interfaceIndex=kDNSServiceInterfaceIndexAny, regtype=_NO_DEFAULT, domain=None, callBack=None):

    ''''Browse for instances of a service.
    flags:
    Currently ignored, reserved for future use.
    interfaceIndex:
    If non-zero, specifies the interface on which to browse for
    services.  Most applications will pass
    kDNSServiceInterfaceIndexAny (0) to browse on all available
    interfaces.
    regtype:
    The service type being browsed for followed by the protocol,
    separated by a dot (e.g. "_ftp._tcp").  The transport protocol
    must be "_tcp" or "_udp".
    domain:
    If not None, specifies the domain on which to browse for
    services.  Most applications will not specify a domain,
    instead browsing on the default domain(s).
    callBack:
    The function to be called when an instance of the service
    being browsed for is found, or if the call asynchronously
    fails.  Its signature should be
    callBack(sdRef, flags, interfaceIndex, errorCode,
    serviceName, regtype, replyDomain).
    return value:
    A DNSServiceRef instance.  The browse operation will run
    indefinitely until the client terminates it by closing the
    DNSServiceRef.
    Callback Parameters:
    sdRef:
    The DNSServiceRef returned by DNSServiceBrowse().
    flags:
    Possible values are kDNSServiceFlagsMoreComing and
    kDNSServiceFlagsAdd.
    interfaceIndex:
    The interface on which the service is advertised.  This index
    should be passed to DNSServiceResolve() when resolving the
    service.
    errorCode:
    Will be kDNSServiceErr_NoError (0) on success, otherwise will
    indicate the failure that occurred.  Other parameters are
    undefined if an error occurred.
    serviceName:
    The discovered service name.  This name should be displayed to
    the user and stored for subsequent use in the
    DNSServiceResolve() call.
    regtype:
    The service type, which is usually (but not always) the same
    as was passed to DNSServiceBrowse().  One case where the
    discovered service type may not be the same as the requested
    service type is when using subtypes: The client may want to
   ...'''
assistant
#Here is the Python code you requested.
    _NO_DEFAULT.check(regtype)
    @_DNSServiceBrowseReply
    def _callback(sdRef, flags, interfaceIndex, errorCode, serviceName, regtype, replyDomain, context):
        if (callBack is not None):
            callBack(sdRef, flags, interfaceIndex, errorCode, serviceName.decode(), regtype.decode(), replyDomain.decode())
    _global_lock.acquire()
    try:
        sdRef = _DNSServiceBrowse(flags, interfaceIndex, regtype, domain, _callback, None)
    finally:
        _global_lock.release()
    sdRef._add_callback(_callback)
    return sdRef