'OutputPlugin constructor.
Args:
source_urn: URN identifying source of the data (hunt or flow).
token: Security token.
Raises:
ValueError: If one of the keyword arguments is empty.'

def __init__(self, source_urn=None, token=None):

    super(InstantOutputPlugin, self).__init__()
    if (not source_urn):
        raise ValueError("source_urn    can't    be    empty.")
    if (not token):
        raise ValueError("token    can't    be    empty.")
    self.source_urn = source_urn
    self.token = token
