import type { MetadataBearer as __MetadataBearer } from "@smithy/types";
import type { FailoverGlobalClusterMessage, FailoverGlobalClusterResult } from "../models/models_0";
/**
 * @public
 */
export type { __MetadataBearer };
/**
 * @public
 *
 * The input for {@link FailoverGlobalClusterCommand}.
 */
export interface FailoverGlobalClusterCommandInput extends FailoverGlobalClusterMessage {
}
/**
 * @public
 *
 * The output of {@link FailoverGlobalClusterCommand}.
 */
export interface FailoverGlobalClusterCommandOutput extends FailoverGlobalClusterResult, __MetadataBearer {
}
declare const FailoverGlobalClusterCommand_base: {
    new (input: FailoverGlobalClusterCommandInput): import("@smithy/core/client").CommandImpl<FailoverGlobalClusterCommandInput, FailoverGlobalClusterCommandOutput, import("..").DocDBClientResolvedConfig, import("..").ServiceInputTypes, import("..").ServiceOutputTypes>;
    new (input: FailoverGlobalClusterCommandInput): import("@smithy/core/client").CommandImpl<FailoverGlobalClusterCommandInput, FailoverGlobalClusterCommandOutput, import("..").DocDBClientResolvedConfig, import("..").ServiceInputTypes, import("..").ServiceOutputTypes>;
    getEndpointParameterInstructions(): import("@smithy/types").EndpointParameterInstructions;
};
/**
 * <p>Promotes the specified secondary DB cluster to be the primary DB cluster in the global cluster when failing over a global cluster occurs.</p>
 *          <p>Use this operation to respond to an unplanned event, such as a regional disaster in the primary region.
 *             Failing over can result in a loss of write transaction data that wasn't replicated to the chosen secondary before the failover event occurred.
 *             However, the recovery process that promotes a DB instance on the chosen seconday DB cluster to be the primary writer DB instance guarantees that the data is in a transactionally consistent state.</p>
 * @example
 * Use a bare-bones client and the command you need to make an API call.
 * ```javascript
 * import { DocDBClient, FailoverGlobalClusterCommand } from "@aws-sdk/client-docdb"; // ES Modules import
 * // const { DocDBClient, FailoverGlobalClusterCommand } = require("@aws-sdk/client-docdb"); // CommonJS import
 * // import type { DocDBClientConfig } from "@aws-sdk/client-docdb";
 * const config = {}; // type is DocDBClientConfig
 * const client = new DocDBClient(config);
 * const input = { // FailoverGlobalClusterMessage
 *   GlobalClusterIdentifier: "STRING_VALUE", // required
 *   TargetDbClusterIdentifier: "STRING_VALUE", // required
 *   AllowDataLoss: true || false,
 *   Switchover: true || false,
 * };
 * const command = new FailoverGlobalClusterCommand(input);
 * const response = await client.send(command);
 * // { // FailoverGlobalClusterResult
 * //   GlobalCluster: { // GlobalCluster
 * //     GlobalClusterIdentifier: "STRING_VALUE",
 * //     GlobalClusterResourceId: "STRING_VALUE",
 * //     GlobalClusterArn: "STRING_VALUE",
 * //     Status: "STRING_VALUE",
 * //     Engine: "STRING_VALUE",
 * //     EngineVersion: "STRING_VALUE",
 * //     DatabaseName: "STRING_VALUE",
 * //     StorageEncrypted: true || false,
 * //     DeletionProtection: true || false,
 * //     GlobalClusterMembers: [ // GlobalClusterMemberList
 * //       { // GlobalClusterMember
 * //         DBClusterArn: "STRING_VALUE",
 * //         Readers: [ // ReadersArnList
 * //           "STRING_VALUE",
 * //         ],
 * //         IsWriter: true || false,
 * //         SynchronizationStatus: "connected" || "pending-resync",
 * //       },
 * //     ],
 * //     FailoverState: { // FailoverState
 * //       Status: "pending" || "failing-over" || "cancelling",
 * //       FromDbClusterArn: "STRING_VALUE",
 * //       ToDbClusterArn: "STRING_VALUE",
 * //       IsDataLossAllowed: true || false,
 * //     },
 * //     TagList: [ // TagList
 * //       { // Tag
 * //         Key: "STRING_VALUE",
 * //         Value: "STRING_VALUE",
 * //       },
 * //     ],
 * //   },
 * // };
 *
 * ```
 *
 * @param FailoverGlobalClusterCommandInput - {@link FailoverGlobalClusterCommandInput}
 * @returns {@link FailoverGlobalClusterCommandOutput}
 * @see {@link FailoverGlobalClusterCommandInput} for command's `input` shape.
 * @see {@link FailoverGlobalClusterCommandOutput} for command's `response` shape.
 * @see {@link DocDBClientResolvedConfig | config} for DocDBClient's `config` shape.
 *
 * @throws {@link DBClusterNotFoundFault} (client fault)
 *  <p>
 *             <code>DBClusterIdentifier</code> doesn't refer to an existing cluster. </p>
 *
 * @throws {@link GlobalClusterNotFoundFault} (client fault)
 *  <p>The <code>GlobalClusterIdentifier</code> doesn't refer to an existing global cluster.</p>
 *
 * @throws {@link InvalidDBClusterStateFault} (client fault)
 *  <p>The cluster isn't in a valid state.</p>
 *
 * @throws {@link InvalidGlobalClusterStateFault} (client fault)
 *  <p>The requested operation can't be performed while the cluster is in this state.</p>
 *
 * @throws {@link DocDBServiceException}
 * <p>Base exception class for all service exceptions from DocDB service.</p>
 *
 *
 * @public
 */
export declare class FailoverGlobalClusterCommand extends FailoverGlobalClusterCommand_base {
    /** @internal type navigation helper, not in runtime. */
    protected static __types: {
        api: {
            input: FailoverGlobalClusterMessage;
            output: FailoverGlobalClusterResult;
        };
        sdk: {
            input: FailoverGlobalClusterCommandInput;
            output: FailoverGlobalClusterCommandOutput;
        };
    };
}