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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 list_function_versions(FunctionName,
                           region=None, key=None, keyid=None, profile=None):
    '''
    List the versions available for the given function.

    Returns list of function versions

    CLI Example:

    .. code-block:: yaml

        versions:
          - {...}
          - {...}

    '''
    try:
        conn = _get_conn(region=region, key=key, keyid=keyid, profile=profile)
        vers = []
        for ret in __utils__['boto3.paged_call'](conn.list_versions_by_function,
                                                 FunctionName=FunctionName):
            vers.extend(ret['Versions'])
        if not bool(vers):
            log.warning('No versions found')
        return {'Versions': vers}
    except ClientError as e:
        return {'error': __utils__['boto3.get_error'](e)}