'Set use_sandbox to True to use the sandbox (test) APNs servers.
Default is False.'

def __init__(self, use_sandbox=False, cert_file=None, key_file=None, enhanced=False):

    super(APNs, self).__init__()
    self.use_sandbox = use_sandbox
    self.cert_file = cert_file
    self.key_file = key_file
    self._feedback_connection = None
    self._gateway_connection = None
    self.enhanced = enhanced
