import type { MetadataBearer as __MetadataBearer } from "@smithy/types";
import type { GetNextMessageRequest, GetNextMessageResponse } from "../models/models_0";
/**
 * @public
 */
export type { __MetadataBearer };
/**
 * @public
 *
 * The input for {@link GetNextMessageCommand}.
 */
export interface GetNextMessageCommandInput extends GetNextMessageRequest {
}
/**
 * @public
 *
 * The output of {@link GetNextMessageCommand}.
 */
export interface GetNextMessageCommandOutput extends GetNextMessageResponse, __MetadataBearer {
}
declare const GetNextMessageCommand_base: {
    new (input: GetNextMessageCommandInput): import("@smithy/core/client").CommandImpl<GetNextMessageCommandInput, GetNextMessageCommandOutput, import("..").QConnectClientResolvedConfig, import("..").ServiceInputTypes, import("..").ServiceOutputTypes>;
    new (input: GetNextMessageCommandInput): import("@smithy/core/client").CommandImpl<GetNextMessageCommandInput, GetNextMessageCommandOutput, import("..").QConnectClientResolvedConfig, import("..").ServiceInputTypes, import("..").ServiceOutputTypes>;
    getEndpointParameterInstructions(): import("@smithy/types").EndpointParameterInstructions;
};
/**
 * <p>Retrieves next message on an Amazon Q in Connect session.</p>
 * @example
 * Use a bare-bones client and the command you need to make an API call.
 * ```javascript
 * import { QConnectClient, GetNextMessageCommand } from "@aws-sdk/client-qconnect"; // ES Modules import
 * // const { QConnectClient, GetNextMessageCommand } = require("@aws-sdk/client-qconnect"); // CommonJS import
 * // import type { QConnectClientConfig } from "@aws-sdk/client-qconnect";
 * const config = {}; // type is QConnectClientConfig
 * const client = new QConnectClient(config);
 * const input = { // GetNextMessageRequest
 *   assistantId: "STRING_VALUE", // required
 *   sessionId: "STRING_VALUE", // required
 *   nextMessageToken: "STRING_VALUE", // required
 * };
 * const command = new GetNextMessageCommand(input);
 * const response = await client.send(command);
 * // { // GetNextMessageResponse
 * //   type: "STRING_VALUE", // required
 * //   response: { // MessageOutput
 * //     value: { // MessageData Union: only one key present
 * //       text: { // TextMessage
 * //         value: "STRING_VALUE",
 * //         citations: [ // Citations
 * //           { // Citation
 * //             contentId: "STRING_VALUE",
 * //             title: "STRING_VALUE",
 * //             knowledgeBaseId: "STRING_VALUE",
 * //             citationSpan: { // CitationSpan
 * //               beginOffsetInclusive: Number("int"),
 * //               endOffsetExclusive: Number("int"),
 * //             },
 * //             sourceURL: "STRING_VALUE",
 * //             referenceType: "STRING_VALUE", // required
 * //           },
 * //         ],
 * //         aiGuardrailAssessment: { // AIGuardrailAssessment
 * //           blocked: true || false, // required
 * //         },
 * //       },
 * //       toolUseResult: { // ToolUseResultData
 * //         toolUseId: "STRING_VALUE", // required
 * //         toolName: "STRING_VALUE", // required
 * //         toolResult: "DOCUMENT_VALUE", // required
 * //         inputSchema: "DOCUMENT_VALUE",
 * //       },
 * //     },
 * //     messageId: "STRING_VALUE", // required
 * //     participant: "STRING_VALUE", // required
 * //     timestamp: new Date("TIMESTAMP"), // required
 * //   },
 * //   requestMessageId: "STRING_VALUE", // required
 * //   conversationState: { // ConversationState
 * //     status: "STRING_VALUE", // required
 * //     reason: "STRING_VALUE",
 * //   },
 * //   nextMessageToken: "STRING_VALUE",
 * //   conversationSessionData: [ // RuntimeSessionDataList
 * //     { // RuntimeSessionData
 * //       key: "STRING_VALUE", // required
 * //       value: { // RuntimeSessionDataValue Union: only one key present
 * //         stringValue: "STRING_VALUE",
 * //       },
 * //     },
 * //   ],
 * //   chunkedResponseTerminated: true || false,
 * // };
 *
 * ```
 *
 * @param GetNextMessageCommandInput - {@link GetNextMessageCommandInput}
 * @returns {@link GetNextMessageCommandOutput}
 * @see {@link GetNextMessageCommandInput} for command's `input` shape.
 * @see {@link GetNextMessageCommandOutput} for command's `response` shape.
 * @see {@link QConnectClientResolvedConfig | config} for QConnectClient's `config` shape.
 *
 * @throws {@link AccessDeniedException} (client fault)
 *  <p>You do not have sufficient access to perform this action.</p>
 *
 * @throws {@link ResourceNotFoundException} (client fault)
 *  <p>The specified resource does not exist.</p>
 *
 * @throws {@link UnprocessableContentException} (client fault)
 *  <p>The server has a failure of processing the message</p>
 *
 * @throws {@link ValidationException} (client fault)
 *  <p>The input fails to satisfy the constraints specified by a service.</p>
 *
 * @throws {@link QConnectServiceException}
 * <p>Base exception class for all service exceptions from QConnect service.</p>
 *
 *
 * @public
 */
export declare class GetNextMessageCommand extends GetNextMessageCommand_base {
    /** @internal type navigation helper, not in runtime. */
    protected static __types: {
        api: {
            input: GetNextMessageRequest;
            output: GetNextMessageResponse;
        };
        sdk: {
            input: GetNextMessageCommandInput;
            output: GetNextMessageCommandOutput;
        };
    };
}