import type { DvalaFunction, HandlerFunction, MacroFunction, NormalBuiltinFunction, UserDefinedFunction } from '../parser/types';
import type { SourceCodeInfo } from '../tokenizer/token';
export declare function isDvalaFunction(value: unknown): value is DvalaFunction;
export declare function asDvalaFunction(value: unknown, sourceCodeInfo?: SourceCodeInfo): DvalaFunction;
export declare function assertDvalaFunction(value: unknown, sourceCodeInfo?: SourceCodeInfo): asserts value is DvalaFunction;
export declare function isUserDefinedFunction(value: unknown): value is UserDefinedFunction;
export declare function asUserDefinedFunction(value: unknown, sourceCodeInfo?: SourceCodeInfo): UserDefinedFunction;
export declare function assertUserDefinedFunction(value: unknown, sourceCodeInfo?: SourceCodeInfo): asserts value is UserDefinedFunction;
export declare function isMacroFunction(value: unknown): value is MacroFunction;
export declare function isBuiltinFunction(value: unknown): value is NormalBuiltinFunction;
export declare function isHandlerFunction(value: unknown): value is HandlerFunction;