<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def cli():
 """ Allow the module to be called from the cli. """

    import argparse

    parser = argparse.ArgumentParser(description='Send data to graphite')

    # Core of the application is to accept a metric and a value.
    parser.add_argument('metric', metavar='metric', type=str,
                        help='name.of.metric')
    parser.add_argument('value', metavar='value', type=int,
                        help='value of metric as int')

    args = parser.parse_args()
    metric = args.metric
    value = args.value

    graphitesend_instance = init()
    graphitesend_instance.send(metric, value)