# coding=utf-8
# Licensed Materials - Property of IBM
# Copyright IBM Corp. 2015,2017

import sys

# Print function that flushes
def print_flush(v):
    """
    Prints argument to stdout flushing after each tuple.
    :returns: None
    """
    print(v)
    sys.stdout.flush()

def identity(t):
    """
    Returns its single argument.
    :returns: Its argument.
    """
    return t;

