import * as z from "zod/v3";
import { Result as SafeParseResult } from "../../types/fp.js";
import { SDKValidationError } from "../errors/sdkvalidationerror.js";
export type VariationTool = {
    /**
     * The key of the tool to use.
     */
    key: string;
    /**
     * The version of the tool.
     */
    version: number;
    /**
     * Custom metadata and configuration for application-level use
     */
    customParameters?: {
        [k: string]: any;
    } | undefined;
};
/** @internal */
export declare const VariationTool$inboundSchema: z.ZodType<VariationTool, z.ZodTypeDef, unknown>;
/** @internal */
export type VariationTool$Outbound = {
    key: string;
    version: number;
    customParameters?: {
        [k: string]: any;
    } | undefined;
};
/** @internal */
export declare const VariationTool$outboundSchema: z.ZodType<VariationTool$Outbound, z.ZodTypeDef, VariationTool>;
export declare function variationToolToJSON(variationTool: VariationTool): string;
export declare function variationToolFromJSON(jsonString: string): SafeParseResult<VariationTool, SDKValidationError>;
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