import { Command as $Command } from "@smithy/smithy-client";
import { MetadataBearer as __MetadataBearer } from "@smithy/types";
import {
  ChimeSDKMessagingClientResolvedConfig,
  ServiceInputTypes,
  ServiceOutputTypes,
} from "../ChimeSDKMessagingClient";
import {
  ChannelFlowCallbackRequest,
  ChannelFlowCallbackResponse,
} from "../models/models_0";
export { __MetadataBearer };
export { $Command };
export interface ChannelFlowCallbackCommandInput
  extends ChannelFlowCallbackRequest {}
export interface ChannelFlowCallbackCommandOutput
  extends ChannelFlowCallbackResponse,
    __MetadataBearer {}
declare const ChannelFlowCallbackCommand_base: {
  new (
    input: ChannelFlowCallbackCommandInput
  ): import("@smithy/smithy-client").CommandImpl<
    ChannelFlowCallbackCommandInput,
    ChannelFlowCallbackCommandOutput,
    ChimeSDKMessagingClientResolvedConfig,
    ServiceInputTypes,
    ServiceOutputTypes
  >;
  new (
    input: ChannelFlowCallbackCommandInput
  ): import("@smithy/smithy-client").CommandImpl<
    ChannelFlowCallbackCommandInput,
    ChannelFlowCallbackCommandOutput,
    ChimeSDKMessagingClientResolvedConfig,
    ServiceInputTypes,
    ServiceOutputTypes
  >;
  getEndpointParameterInstructions(): import("@smithy/middleware-endpoint").EndpointParameterInstructions;
};
export declare class ChannelFlowCallbackCommand extends ChannelFlowCallbackCommand_base {
  protected static __types: {
    api: {
      input: ChannelFlowCallbackRequest;
      output: ChannelFlowCallbackResponse;
    };
    sdk: {
      input: ChannelFlowCallbackCommandInput;
      output: ChannelFlowCallbackCommandOutput;
    };
  };
}