import type { MetadataBearer as __MetadataBearer } from "@smithy/types";
import type { DescribeAppVersionRequest, DescribeAppVersionResponse } from "../models/models_0";
/**
 * @public
 */
export type { __MetadataBearer };
/**
 * @public
 *
 * The input for {@link DescribeAppVersionCommand}.
 */
export interface DescribeAppVersionCommandInput extends DescribeAppVersionRequest {
}
/**
 * @public
 *
 * The output of {@link DescribeAppVersionCommand}.
 */
export interface DescribeAppVersionCommandOutput extends DescribeAppVersionResponse, __MetadataBearer {
}
declare const DescribeAppVersionCommand_base: {
    new (input: DescribeAppVersionCommandInput): import("@smithy/core/client").CommandImpl<DescribeAppVersionCommandInput, DescribeAppVersionCommandOutput, import("..").ResiliencehubClientResolvedConfig, import("..").ServiceInputTypes, import("..").ServiceOutputTypes>;
    new (input: DescribeAppVersionCommandInput): import("@smithy/core/client").CommandImpl<DescribeAppVersionCommandInput, DescribeAppVersionCommandOutput, import("..").ResiliencehubClientResolvedConfig, import("..").ServiceInputTypes, import("..").ServiceOutputTypes>;
    getEndpointParameterInstructions(): import("@smithy/types").EndpointParameterInstructions;
};
/**
 * <p>Describes the Resilience Hub application version.</p>
 * @example
 * Use a bare-bones client and the command you need to make an API call.
 * ```javascript
 * import { ResiliencehubClient, DescribeAppVersionCommand } from "@aws-sdk/client-resiliencehub"; // ES Modules import
 * // const { ResiliencehubClient, DescribeAppVersionCommand } = require("@aws-sdk/client-resiliencehub"); // CommonJS import
 * // import type { ResiliencehubClientConfig } from "@aws-sdk/client-resiliencehub";
 * const config = {}; // type is ResiliencehubClientConfig
 * const client = new ResiliencehubClient(config);
 * const input = { // DescribeAppVersionRequest
 *   appArn: "STRING_VALUE", // required
 *   appVersion: "STRING_VALUE", // required
 * };
 * const command = new DescribeAppVersionCommand(input);
 * const response = await client.send(command);
 * // { // DescribeAppVersionResponse
 * //   appArn: "STRING_VALUE", // required
 * //   appVersion: "STRING_VALUE", // required
 * //   additionalInfo: { // AdditionalInfoMap
 * //     "<keys>": [ // AdditionalInfoValueList
 * //       "STRING_VALUE",
 * //     ],
 * //   },
 * // };
 *
 * ```
 *
 * @param DescribeAppVersionCommandInput - {@link DescribeAppVersionCommandInput}
 * @returns {@link DescribeAppVersionCommandOutput}
 * @see {@link DescribeAppVersionCommandInput} for command's `input` shape.
 * @see {@link DescribeAppVersionCommandOutput} for command's `response` shape.
 * @see {@link ResiliencehubClientResolvedConfig | config} for ResiliencehubClient's `config` shape.
 *
 * @throws {@link AccessDeniedException} (client fault)
 *  <p>You don't have permissions to perform the requested operation. The user or role that is
 *       making the request must have at least one IAM permissions policy attached that grants the
 *       required permissions.</p>
 *
 * @throws {@link InternalServerException} (server fault)
 *  <p>This exception occurs when there is an internal failure in the Resilience Hub
 *       service.</p>
 *
 * @throws {@link ResourceNotFoundException} (client fault)
 *  <p>This exception occurs when the specified resource could not be found.</p>
 *
 * @throws {@link ThrottlingException} (client fault)
 *  <p>This exception occurs when you have exceeded the limit on the number of requests per second.</p>
 *
 * @throws {@link ValidationException} (client fault)
 *  <p>This exception occurs when a request is not valid.</p>
 *
 * @throws {@link ResiliencehubServiceException}
 * <p>Base exception class for all service exceptions from Resiliencehub service.</p>
 *
 *
 * @public
 */
export declare class DescribeAppVersionCommand extends DescribeAppVersionCommand_base {
    /** @internal type navigation helper, not in runtime. */
    protected static __types: {
        api: {
            input: DescribeAppVersionRequest;
            output: DescribeAppVersionResponse;
        };
        sdk: {
            input: DescribeAppVersionCommandInput;
            output: DescribeAppVersionCommandOutput;
        };
    };
}