import * as z from "zod";
import { Result as SafeParseResult } from "../../types/fp.js";
import { SDKValidationError } from "../errors/sdkvalidationerror.js";
export type LLMTokenUsage = {
    promptTokens: number;
    completionTokens: number;
    totalTokens: number;
};
/** @internal */
export declare const LLMTokenUsage$inboundSchema: z.ZodType<LLMTokenUsage, z.ZodTypeDef, unknown>;
/** @internal */
export type LLMTokenUsage$Outbound = {
    prompt_tokens: number;
    completion_tokens: number;
    total_tokens: number;
};
/** @internal */
export declare const LLMTokenUsage$outboundSchema: z.ZodType<LLMTokenUsage$Outbound, z.ZodTypeDef, LLMTokenUsage>;
/**
 * @internal
 * @deprecated This namespace will be removed in future versions. Use schemas and types that are exported directly from this module.
 */
export declare namespace LLMTokenUsage$ {
    /** @deprecated use `LLMTokenUsage$inboundSchema` instead. */
    const inboundSchema: z.ZodType<LLMTokenUsage, z.ZodTypeDef, unknown>;
    /** @deprecated use `LLMTokenUsage$outboundSchema` instead. */
    const outboundSchema: z.ZodType<LLMTokenUsage$Outbound, z.ZodTypeDef, LLMTokenUsage>;
    /** @deprecated use `LLMTokenUsage$Outbound` instead. */
    type Outbound = LLMTokenUsage$Outbound;
}
export declare function llmTokenUsageToJSON(llmTokenUsage: LLMTokenUsage): string;
export declare function llmTokenUsageFromJSON(jsonString: string): SafeParseResult<LLMTokenUsage, SDKValidationError>;
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