import { BooleanValue } from "../../value/BooleanValue.js";
import { Expr1 } from "../Expr1.js";
import { Expr } from "../Expr.js";
import { ExprEvalError } from "../ExprEvalResult.js";
import { IfcExpressionContext } from "../../context/IfcExpressionContext.js";
import { ExprType } from "../../type/ExprType.js";
import { ExprStringBuilder } from "../ExprStringBuilder.js";
import { LogicalValue } from "../../value/LogicalValue.js";
export declare class NotExpr extends Expr1<BooleanValue | LogicalValue, BooleanValue | LogicalValue> {
    constructor(sub: Expr<BooleanValue | LogicalValue>);
    protected calculateResult(ctx: IfcExpressionContext, localCtx: Map<string, any>, subExpressionResult: BooleanValue | LogicalValue): ExprEvalError | BooleanValue | LogicalValue;
    protected buildExprString(builder: ExprStringBuilder): void;
    getType(): ExprType;
}