import type { LanguageModelV4CallOptions } from "@ai-sdk/provider";
import { type CallJsonBudget } from "./call-options-primitives.js";
export declare function cloneHeaders(value: LanguageModelV4CallOptions["headers"]): typeof value;
export declare function cloneTool(tool: NonNullable<LanguageModelV4CallOptions["tools"]>[number], budget: CallJsonBudget): typeof tool;
export declare function validateToolConfiguration(tools: LanguageModelV4CallOptions["tools"], toolChoice: LanguageModelV4CallOptions["toolChoice"]): void;
export declare function validateCallMetadataStrings(options: LanguageModelV4CallOptions): void;