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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 export_pipeline(url, pipeline_id, auth, verify_ssl):
 """Export the config and rules for a pipeline. Args: url (str):
 the host url in the form 'http://host:port/'. pipeline_id (str):
 the ID of of the exported pipeline. auth (tuple):
 a tuple of username, and password. verify_ssl (bool):
 whether to verify ssl certificates Returns: dict: the response json """

    export_result = requests.get(url + '/' + pipeline_id + '/export', headers=X_REQ_BY, auth=auth, verify=verify_ssl)
    if export_result.status_code == 404:
        logging.error('Pipeline not found: ' + pipeline_id)
    export_result.raise_for_status()
    return export_result.json()