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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 delete_policy_version(policyName, policyVersionId,
            region=None, key=None, keyid=None, profile=None):
    '''
    Given a policy name and version, delete it.

    Returns {deleted: true} if the policy version was deleted and returns
    {deleted: false} if the policy version was not deleted.

    CLI Example:

    .. code-block:: bash

        salt myminion boto_iot.delete_policy_version mypolicy version

    '''

    try:
        conn = _get_conn(region=region, key=key, keyid=keyid, profile=profile)
        conn.delete_policy_version(policyName=policyName,
                                   policyVersionId=policyVersionId)
        return {'deleted': True}
    except ClientError as e:
        return {'deleted': False, 'error': __utils__['boto3.get_error'](e)}