import { Command as $Command } from "@smithy/smithy-client";
import { MetadataBearer as __MetadataBearer } from "@smithy/types";
import { CloudFrontClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes } from "../CloudFrontClient";
import { UpdateKeyGroupRequest, UpdateKeyGroupResult } from "../models/models_2";
/**
 * @public
 */
export type { __MetadataBearer };
export { $Command };
/**
 * @public
 *
 * The input for {@link UpdateKeyGroupCommand}.
 */
export interface UpdateKeyGroupCommandInput extends UpdateKeyGroupRequest {
}
/**
 * @public
 *
 * The output of {@link UpdateKeyGroupCommand}.
 */
export interface UpdateKeyGroupCommandOutput extends UpdateKeyGroupResult, __MetadataBearer {
}
declare const UpdateKeyGroupCommand_base: {
    new (input: UpdateKeyGroupCommandInput): import("@smithy/smithy-client").CommandImpl<UpdateKeyGroupCommandInput, UpdateKeyGroupCommandOutput, CloudFrontClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes>;
    new (input: UpdateKeyGroupCommandInput): import("@smithy/smithy-client").CommandImpl<UpdateKeyGroupCommandInput, UpdateKeyGroupCommandOutput, CloudFrontClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes>;
    getEndpointParameterInstructions(): import("@smithy/middleware-endpoint").EndpointParameterInstructions;
};
/**
 * <p>Updates a key group.</p> <p>When you update a key group, all the fields are updated with the values provided in the request. You cannot update some fields independent of others. To update a key group:</p> <ol> <li> <p>Get the current key group with <code>GetKeyGroup</code> or <code>GetKeyGroupConfig</code>.</p> </li> <li> <p>Locally modify the fields in the key group that you want to update. For example, add or remove public key IDs.</p> </li> <li> <p>Call <code>UpdateKeyGroup</code> with the entire key group object, including the fields that you modified and those that you didn't.</p> </li> </ol>
 * @example
 * Use a bare-bones client and the command you need to make an API call.
 * ```javascript
 * import { CloudFrontClient, UpdateKeyGroupCommand } from "@aws-sdk/client-cloudfront"; // ES Modules import
 * // const { CloudFrontClient, UpdateKeyGroupCommand } = require("@aws-sdk/client-cloudfront"); // CommonJS import
 * const client = new CloudFrontClient(config);
 * const input = { // UpdateKeyGroupRequest
 *   KeyGroupConfig: { // KeyGroupConfig
 *     Name: "STRING_VALUE", // required
 *     Items: [ // PublicKeyIdList // required
 *       "STRING_VALUE",
 *     ],
 *     Comment: "STRING_VALUE",
 *   },
 *   Id: "STRING_VALUE", // required
 *   IfMatch: "STRING_VALUE",
 * };
 * const command = new UpdateKeyGroupCommand(input);
 * const response = await client.send(command);
 * // { // UpdateKeyGroupResult
 * //   KeyGroup: { // KeyGroup
 * //     Id: "STRING_VALUE", // required
 * //     LastModifiedTime: new Date("TIMESTAMP"), // required
 * //     KeyGroupConfig: { // KeyGroupConfig
 * //       Name: "STRING_VALUE", // required
 * //       Items: [ // PublicKeyIdList // required
 * //         "STRING_VALUE",
 * //       ],
 * //       Comment: "STRING_VALUE",
 * //     },
 * //   },
 * //   ETag: "STRING_VALUE",
 * // };
 *
 * ```
 *
 * @param UpdateKeyGroupCommandInput - {@link UpdateKeyGroupCommandInput}
 * @returns {@link UpdateKeyGroupCommandOutput}
 * @see {@link UpdateKeyGroupCommandInput} for command's `input` shape.
 * @see {@link UpdateKeyGroupCommandOutput} for command's `response` shape.
 * @see {@link CloudFrontClientResolvedConfig | config} for CloudFrontClient's `config` shape.
 *
 * @throws {@link InvalidArgument} (client fault)
 *  <p>An argument is invalid.</p>
 *
 * @throws {@link InvalidIfMatchVersion} (client fault)
 *  <p>The <code>If-Match</code> version is missing or not valid.</p>
 *
 * @throws {@link KeyGroupAlreadyExists} (client fault)
 *  <p>A key group with this name already exists. You must provide a unique name. To modify an existing key group, use <code>UpdateKeyGroup</code>.</p>
 *
 * @throws {@link NoSuchResource} (client fault)
 *  <p>A resource that was specified is not valid.</p>
 *
 * @throws {@link PreconditionFailed} (client fault)
 *  <p>The precondition in one or more of the request fields evaluated to <code>false</code>.</p>
 *
 * @throws {@link TooManyPublicKeysInKeyGroup} (client fault)
 *  <p>The number of public keys in this key group is more than the maximum allowed. For more information, see <a href="https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/cloudfront-limits.html">Quotas</a> (formerly known as limits) in the <i>Amazon CloudFront Developer Guide</i>.</p>
 *
 * @throws {@link CloudFrontServiceException}
 * <p>Base exception class for all service exceptions from CloudFront service.</p>
 *
 *
 * @public
 */
export declare class UpdateKeyGroupCommand extends UpdateKeyGroupCommand_base {
    /** @internal type navigation helper, not in runtime. */
    protected static __types: {
        api: {
            input: UpdateKeyGroupRequest;
            output: UpdateKeyGroupResult;
        };
        sdk: {
            input: UpdateKeyGroupCommandInput;
            output: UpdateKeyGroupCommandOutput;
        };
    };
}