import { Token } from './token';
export declare abstract class ASTNode {
}
export declare class BinOpNode extends ASTNode {
    root: Token;
    left: ASTNode;
    right: ASTNode;
    constructor(root: Token, left: ASTNode, right: ASTNode);
}
export declare class UnaryOpNode extends ASTNode {
    root: Token;
    child: ASTNode;
    constructor(root: Token, child: ASTNode);
}
export declare class NumberNode extends ASTNode {
    root: Token;
    child: ASTNode | null;
    constructor(root: Token, child: ASTNode | null);
}
export declare class UnitNode extends ASTNode {
    root: Token;
    constructor(root: Token);
}