import { Command as $Command } from "@smithy/smithy-client";
import { MetadataBearer as __MetadataBearer } from "@smithy/types";
import {
  ElastiCacheClientResolvedConfig,
  ServiceInputTypes,
  ServiceOutputTypes,
} from "../ElastiCacheClient";
import {
  CacheEngineVersionMessage,
  DescribeCacheEngineVersionsMessage,
} from "../models/models_0";
export { __MetadataBearer };
export { $Command };
export interface DescribeCacheEngineVersionsCommandInput
  extends DescribeCacheEngineVersionsMessage {}
export interface DescribeCacheEngineVersionsCommandOutput
  extends CacheEngineVersionMessage,
    __MetadataBearer {}
declare const DescribeCacheEngineVersionsCommand_base: {
  new (
    input: DescribeCacheEngineVersionsCommandInput
  ): import("@smithy/smithy-client").CommandImpl<
    DescribeCacheEngineVersionsCommandInput,
    DescribeCacheEngineVersionsCommandOutput,
    ElastiCacheClientResolvedConfig,
    ServiceInputTypes,
    ServiceOutputTypes
  >;
  new (
    ...[input]: [] | [DescribeCacheEngineVersionsCommandInput]
  ): import("@smithy/smithy-client").CommandImpl<
    DescribeCacheEngineVersionsCommandInput,
    DescribeCacheEngineVersionsCommandOutput,
    ElastiCacheClientResolvedConfig,
    ServiceInputTypes,
    ServiceOutputTypes
  >;
  getEndpointParameterInstructions(): import("@smithy/middleware-endpoint").EndpointParameterInstructions;
};
export declare class DescribeCacheEngineVersionsCommand extends DescribeCacheEngineVersionsCommand_base {
  protected static __types: {
    api: {
      input: DescribeCacheEngineVersionsMessage;
      output: CacheEngineVersionMessage;
    };
    sdk: {
      input: DescribeCacheEngineVersionsCommandInput;
      output: DescribeCacheEngineVersionsCommandOutput;
    };
  };
}