import type { ArrowFunctionExpression, Comment, SourceLocation } from 'estree';
import type { StepperExpression, StepperPattern } from '..';
import type { StepperBaseNode } from '../../interface';
export declare class StepperArrowFunctionExpression implements ArrowFunctionExpression, StepperBaseNode {
    type: 'ArrowFunctionExpression';
    params: StepperPattern[];
    body: StepperExpression;
    expression: boolean;
    generator: boolean;
    async: boolean;
    name?: string;
    leadingComments?: Comment[];
    trailingComments?: Comment[];
    loc?: SourceLocation | null;
    range?: [number, number];
    constructor(params: StepperPattern[], body: StepperExpression, name?: string, expression?: boolean, generator?: boolean, async?: boolean, leadingComments?: Comment[], trailingComments?: Comment[], loc?: SourceLocation | null, range?: [number, number]);
    static create(node: ArrowFunctionExpression): StepperArrowFunctionExpression;
    isContractible(): boolean;
    isOneStepPossible(): boolean;
    contract(): StepperExpression;
    oneStep(): StepperExpression;
    assignName(name: string): StepperArrowFunctionExpression;
    scanAllDeclarationNames(): string[];
    substitute(id: StepperPattern, value: StepperExpression, upperBoundName?: string[]): StepperExpression;
    freeNames(): string[];
    allNames(): string[];
    rename(before: string, after: string): StepperExpression;
}