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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 describe_api_keys(region=None, key=None, keyid=None, profile=None):
    '''
    Gets information about the defined API Keys.  Return list of apiKeys.

    CLI Example:

    .. code-block:: bash

        salt myminion boto_apigateway.describe_api_keys

    '''
    try:
        conn = _get_conn(region=region, key=key, keyid=keyid, profile=profile)
        apikeys = _multi_call(conn.get_api_keys, 'items')

        return {'apiKeys': [_convert_datetime_str(apikey) for apikey in apikeys]}
    except ClientError as e:
        return {'error': __utils__['boto3.get_error'](e)}