import type { MetadataBearer as __MetadataBearer } from "@smithy/types";
import type { DescribeFlywheelIterationRequest, DescribeFlywheelIterationResponse } from "../models/models_0";
/**
 * @public
 */
export type { __MetadataBearer };
/**
 * @public
 *
 * The input for {@link DescribeFlywheelIterationCommand}.
 */
export interface DescribeFlywheelIterationCommandInput extends DescribeFlywheelIterationRequest {
}
/**
 * @public
 *
 * The output of {@link DescribeFlywheelIterationCommand}.
 */
export interface DescribeFlywheelIterationCommandOutput extends DescribeFlywheelIterationResponse, __MetadataBearer {
}
declare const DescribeFlywheelIterationCommand_base: {
    new (input: DescribeFlywheelIterationCommandInput): import("@smithy/core/client").CommandImpl<DescribeFlywheelIterationCommandInput, DescribeFlywheelIterationCommandOutput, import("..").ComprehendClientResolvedConfig, import("..").ServiceInputTypes, import("..").ServiceOutputTypes>;
    new (input: DescribeFlywheelIterationCommandInput): import("@smithy/core/client").CommandImpl<DescribeFlywheelIterationCommandInput, DescribeFlywheelIterationCommandOutput, import("..").ComprehendClientResolvedConfig, import("..").ServiceInputTypes, import("..").ServiceOutputTypes>;
    getEndpointParameterInstructions(): import("@smithy/types").EndpointParameterInstructions;
};
/**
 * <p>Retrieve the configuration properties of a flywheel iteration.
 *       For more information about flywheels, see <a href="https://docs.aws.amazon.com/comprehend/latest/dg/flywheels-about.html">
 *       Flywheel overview</a> in the <i>Amazon Comprehend Developer Guide</i>.</p>
 * @example
 * Use a bare-bones client and the command you need to make an API call.
 * ```javascript
 * import { ComprehendClient, DescribeFlywheelIterationCommand } from "@aws-sdk/client-comprehend"; // ES Modules import
 * // const { ComprehendClient, DescribeFlywheelIterationCommand } = require("@aws-sdk/client-comprehend"); // CommonJS import
 * // import type { ComprehendClientConfig } from "@aws-sdk/client-comprehend";
 * const config = {}; // type is ComprehendClientConfig
 * const client = new ComprehendClient(config);
 * const input = { // DescribeFlywheelIterationRequest
 *   FlywheelArn: "STRING_VALUE", // required
 *   FlywheelIterationId: "STRING_VALUE", // required
 * };
 * const command = new DescribeFlywheelIterationCommand(input);
 * const response = await client.send(command);
 * // { // DescribeFlywheelIterationResponse
 * //   FlywheelIterationProperties: { // FlywheelIterationProperties
 * //     FlywheelArn: "STRING_VALUE",
 * //     FlywheelIterationId: "STRING_VALUE",
 * //     CreationTime: new Date("TIMESTAMP"),
 * //     EndTime: new Date("TIMESTAMP"),
 * //     Status: "TRAINING" || "EVALUATING" || "COMPLETED" || "FAILED" || "STOP_REQUESTED" || "STOPPED",
 * //     Message: "STRING_VALUE",
 * //     EvaluatedModelArn: "STRING_VALUE",
 * //     EvaluatedModelMetrics: { // FlywheelModelEvaluationMetrics
 * //       AverageF1Score: Number("double"),
 * //       AveragePrecision: Number("double"),
 * //       AverageRecall: Number("double"),
 * //       AverageAccuracy: Number("double"),
 * //     },
 * //     TrainedModelArn: "STRING_VALUE",
 * //     TrainedModelMetrics: {
 * //       AverageF1Score: Number("double"),
 * //       AveragePrecision: Number("double"),
 * //       AverageRecall: Number("double"),
 * //       AverageAccuracy: Number("double"),
 * //     },
 * //     EvaluationManifestS3Prefix: "STRING_VALUE",
 * //   },
 * // };
 *
 * ```
 *
 * @param DescribeFlywheelIterationCommandInput - {@link DescribeFlywheelIterationCommandInput}
 * @returns {@link DescribeFlywheelIterationCommandOutput}
 * @see {@link DescribeFlywheelIterationCommandInput} for command's `input` shape.
 * @see {@link DescribeFlywheelIterationCommandOutput} for command's `response` shape.
 * @see {@link ComprehendClientResolvedConfig | config} for ComprehendClient's `config` shape.
 *
 * @throws {@link InternalServerException} (server fault)
 *  <p>An internal server error occurred. Retry your request.</p>
 *
 * @throws {@link InvalidRequestException} (client fault)
 *  <p>The request is invalid.</p>
 *
 * @throws {@link ResourceNotFoundException} (client fault)
 *  <p>The specified resource ARN was not found. Check the ARN and try your request again.</p>
 *
 * @throws {@link TooManyRequestsException} (client fault)
 *  <p>The number of requests exceeds the limit. Resubmit your request later.</p>
 *
 * @throws {@link ComprehendServiceException}
 * <p>Base exception class for all service exceptions from Comprehend service.</p>
 *
 *
 * @public
 */
export declare class DescribeFlywheelIterationCommand extends DescribeFlywheelIterationCommand_base {
    /** @internal type navigation helper, not in runtime. */
    protected static __types: {
        api: {
            input: DescribeFlywheelIterationRequest;
            output: DescribeFlywheelIterationResponse;
        };
        sdk: {
            input: DescribeFlywheelIterationCommandInput;
            output: DescribeFlywheelIterationCommandOutput;
        };
    };
}