import * as types from './types';
/**
 * Invoke the Cumulus private API lambda (using pRetry)
 *
 * @param {Object} params
 * @param {string} params.prefix - the prefix configured for the stack
 * @param {string} params.payload - the payload object (e.g. httpMethod,
 *   resource, headers, path, body) containing params the lambda expects in the
 *   payload
 * @param {number[]} params.expectedStatusCodes - list of status codes that will
 *                                                not cause a retry/failure
 * @param {pRetry.Options} [params.pRetryOptions={}]
 * @returns {Promise<Object|undefined>} - Returns promise that resolves to the
 *   output payload from the API lambda
 */
export declare function invokeApi(params: types.InvokeApiFunctionParams): Promise<types.ApiGatewayLambdaHttpProxyResponse>;
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