import { IEnvironmentFrame } from './environment-frame';
import { IExpression } from './iexpression';
import { IGlobalInfo } from './iglobal-info';
import { IVariable } from './variable';
export declare class LetStarUsage<T> implements IExpression<T> {
    readonly bindings: [IVariable<T>, IExpression<T>][];
    readonly expression: IExpression<T>;
    constructor(bindings: [IVariable<T>, IExpression<T>][], expression: IExpression<T>);
    toString(): string;
    evaluate(globalInfo: IGlobalInfo<T>, localEnvironment?: IEnvironmentFrame<T>, options?: unknown): T;
}
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