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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def create_retention_policy(database,
                            name,
                            duration,
                            replication,
                            default=False,
                            **client_args):
    '''
    Create a retention policy.

    database
        Name of the database for which the retention policy will be created.

    name
        Name of the new retention policy.

    duration
        Duration of the new retention policy.

        Durations such as 1h, 90m, 12h, 7d, and 4w, are all supported and mean
        1 hour, 90 minutes, 12 hours, 7 day, and 4 weeks, respectively. For
        infinite retention – meaning the data will never be deleted – use 'INF'
        for duration. The minimum retention period is 1 hour.

    replication
        Replication factor of the retention policy.

        This determines how many independent copies of each data point are
        stored in a cluster.

    default : False
        Whether or not the policy as default will be set as default.

    CLI Example:

    .. code-block:: bash

        salt '*' influxdb.create_retention_policy metrics default 1d 1
    '''
    client = _client(**client_args)
    client.create_retention_policy(name, duration, replication, database,
                                   default)

    return True