import type { MetadataBearer as __MetadataBearer } from "@smithy/types";
import type { UpdateKeyDescriptionRequest } from "../models/models_0";
/**
 * @public
 */
export type { __MetadataBearer };
/**
 * @public
 *
 * The input for {@link UpdateKeyDescriptionCommand}.
 */
export interface UpdateKeyDescriptionCommandInput extends UpdateKeyDescriptionRequest {
}
/**
 * @public
 *
 * The output of {@link UpdateKeyDescriptionCommand}.
 */
export interface UpdateKeyDescriptionCommandOutput extends __MetadataBearer {
}
declare const UpdateKeyDescriptionCommand_base: {
    new (input: UpdateKeyDescriptionCommandInput): import("@smithy/core/client").CommandImpl<UpdateKeyDescriptionCommandInput, UpdateKeyDescriptionCommandOutput, import("..").KMSClientResolvedConfig, import("..").ServiceInputTypes, import("..").ServiceOutputTypes>;
    new (input: UpdateKeyDescriptionCommandInput): import("@smithy/core/client").CommandImpl<UpdateKeyDescriptionCommandInput, UpdateKeyDescriptionCommandOutput, import("..").KMSClientResolvedConfig, import("..").ServiceInputTypes, import("..").ServiceOutputTypes>;
    getEndpointParameterInstructions(): import("@smithy/types").EndpointParameterInstructions;
};
/**
 * <p>Updates the description of a KMS key. To see the description of a KMS key, use <a>DescribeKey</a>. </p>
 *          <p>The KMS key that you use for this operation must be in a compatible key state. For
 * details, see <a href="https://docs.aws.amazon.com/kms/latest/developerguide/key-state.html">Key states of KMS keys</a> in the <i>Key Management Service Developer Guide</i>.</p>
 *          <p>
 *             <b>Cross-account use</b>: No. You cannot perform this operation on a KMS key in a different Amazon Web Services account. </p>
 *          <p>
 *             <b>Required permissions</b>: <a href="https://docs.aws.amazon.com/kms/latest/developerguide/kms-api-permissions-reference.html">kms:UpdateKeyDescription</a> (key policy)</p>
 *          <p>
 *             <b>Related operations</b>
 *          </p>
 *          <ul>
 *             <li>
 *                <p>
 *                   <a>CreateKey</a>
 *                </p>
 *             </li>
 *             <li>
 *                <p>
 *                   <a>DescribeKey</a>
 *                </p>
 *             </li>
 *          </ul>
 *          <p>
 *             <b>Eventual consistency</b>: The KMS API follows an eventual consistency model.
 *   For more information, see <a href="https://docs.aws.amazon.com/kms/latest/developerguide/accessing-kms.html#programming-eventual-consistency">KMS eventual consistency</a>.</p>
 * @example
 * Use a bare-bones client and the command you need to make an API call.
 * ```javascript
 * import { KMSClient, UpdateKeyDescriptionCommand } from "@aws-sdk/client-kms"; // ES Modules import
 * // const { KMSClient, UpdateKeyDescriptionCommand } = require("@aws-sdk/client-kms"); // CommonJS import
 * // import type { KMSClientConfig } from "@aws-sdk/client-kms";
 * const config = {}; // type is KMSClientConfig
 * const client = new KMSClient(config);
 * const input = { // UpdateKeyDescriptionRequest
 *   KeyId: "STRING_VALUE", // required
 *   Description: "STRING_VALUE", // required
 * };
 * const command = new UpdateKeyDescriptionCommand(input);
 * const response = await client.send(command);
 * // {};
 *
 * ```
 *
 * @param UpdateKeyDescriptionCommandInput - {@link UpdateKeyDescriptionCommandInput}
 * @returns {@link UpdateKeyDescriptionCommandOutput}
 * @see {@link UpdateKeyDescriptionCommandInput} for command's `input` shape.
 * @see {@link UpdateKeyDescriptionCommandOutput} for command's `response` shape.
 * @see {@link KMSClientResolvedConfig | config} for KMSClient's `config` shape.
 *
 * @throws {@link DependencyTimeoutException} (server fault)
 *  <p>The system timed out while trying to fulfill the request. You can retry the
 *       request.</p>
 *
 * @throws {@link InvalidArnException} (client fault)
 *  <p>The request was rejected because a specified ARN, or an ARN in a key policy, is not
 *       valid.</p>
 *
 * @throws {@link KMSInternalException} (server fault)
 *  <p>The request was rejected because an internal exception occurred. The request can be
 *       retried.</p>
 *
 * @throws {@link KMSInvalidStateException} (client fault)
 *  <p>The request was rejected because the state of the specified resource is not valid for this
 *       request.</p>
 *          <p>This exceptions means one of the following:</p>
 *          <ul>
 *             <li>
 *                <p>The key state of the KMS key is not compatible with the operation. </p>
 *                <p>To find the key state, use the <a>DescribeKey</a> operation. For more
 *           information about which key states are compatible with each KMS operation, see
 *           <a href="https://docs.aws.amazon.com/kms/latest/developerguide/key-state.html">Key states of KMS keys</a> in the <i>
 *                      <i>Key Management Service Developer Guide</i>
 *                   </i>.</p>
 *             </li>
 *             <li>
 *                <p>For cryptographic operations on KMS keys in custom key stores, this exception
 *           represents a general failure with many possible causes. To identify the cause, see the
 *           error message that accompanies the exception.</p>
 *             </li>
 *          </ul>
 *
 * @throws {@link NotFoundException} (client fault)
 *  <p>The request was rejected because the specified entity or resource could not be
 *       found.</p>
 *
 * @throws {@link KMSServiceException}
 * <p>Base exception class for all service exceptions from KMS service.</p>
 *
 *
 * @example To update the description of a KMS key
 * ```javascript
 * // The following example updates the description of the specified KMS key.
 * const input = {
 *   Description: "Example description that indicates the intended use of this KMS key.",
 *   KeyId: "1234abcd-12ab-34cd-56ef-1234567890ab"
 * };
 * const command = new UpdateKeyDescriptionCommand(input);
 * const response = await client.send(command);
 * /* response is
 * { /* metadata only *\/ }
 * *\/
 * ```
 *
 * @public
 */
export declare class UpdateKeyDescriptionCommand extends UpdateKeyDescriptionCommand_base {
    /** @internal type navigation helper, not in runtime. */
    protected static __types: {
        api: {
            input: UpdateKeyDescriptionRequest;
            output: {};
        };
        sdk: {
            input: UpdateKeyDescriptionCommandInput;
            output: UpdateKeyDescriptionCommandOutput;
        };
    };
}