import type { LLMRequest, ToolCall } from "../types.ts";
export declare function validateMessages<T>(messages: LLMRequest["messages"]): T;
export declare function validateTools<T>(tools: LLMRequest["tools"]): T | undefined;
export declare function parseToolCall(tc: {
    id: string;
    type: string;
    function?: {
        name: string;
        arguments: string;
    };
    custom?: {
        name: string;
        input: unknown;
    };
}, providerName: string): ToolCall;
export declare function parseUsage(usage: {
    prompt_tokens?: number;
    completion_tokens?: number;
    total_tokens?: number;
} | undefined): {
    promptTokens: number;
    completionTokens: number;
    totalTokens: number;
};
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