def verify_remote(assertion, audience=None):
"""Verify the given VEP assertion by posting to the remote verifier.
This is a convenience wrapper that uses the RemoteVerifier class in its
default configuration. If you have more particular needs, create your own
instance of RemoteVerifier and use its verify() methd.
"""
global _DEFAULT_REMOTE_VERIFIER
if _DEFAULT_REMOTE_VERIFIER is None:
_DEFAULT_REMOTE_VERIFIER = RemoteVerifier()
return _DEFAULT_REMOTE_VERIFIER.verify(assertion, audience)
