import { Throwable } from "ts-injection";
import { ApiEvent, ApiHandler, ApiHandlerConstructor, ApiHandlerInvokeFunction, ApiResponse, BigsbyError, DeepPartial, HandlerClassesInput, LifecycleErrors, RequestContext, ApiConfig, BigsbyLogger, InvalidApiVersionError, BigsbyPlugin } from "../types";
export declare function generateInstanceName(): string;
export declare function concatArray(objValue: unknown, srcValue: unknown): unknown[] | undefined;
export declare function mergeParamConfigs(logger: BigsbyLogger, config: ApiConfig, scopedConfig: DeepPartial<ApiConfig> | undefined): ApiConfig;
export declare function getHandlerClass(logger: BigsbyLogger, classes: HandlerClassesInput, event: ApiEvent, config: ApiConfig): Throwable<InvalidApiVersionError | BigsbyError, {
    handler: ApiHandlerConstructor;
    apiVersion: string;
}>;
export declare function mergeAnnotationConfigs(handlerClass: ApiHandlerConstructor, config: ApiConfig): ApiConfig;
export declare function runRestApiLifecycle(handlerInstance: ApiHandler, invoke: ApiHandlerInvokeFunction, context: RequestContext): Promise<Throwable<LifecycleErrors, ApiResponse>>;
export declare function convertErrorToResponse(logger: BigsbyLogger, error: Error, context: RequestContext): Promise<ApiResponse>;
export declare function isBigsbyPlugin(plugin: unknown): plugin is BigsbyPlugin;