import { ExpressionValue } from "../../value/ExpressionValue.js";
import { Expr2 } from "../Expr2.js";
import { Expr } from "../Expr.js";
import { IfcExpressionContext } from "../../context/IfcExpressionContext.js";
import { ExprEvalError } from "../ExprEvalResult.js";
import { BooleanValue } from "../../value/BooleanValue.js";
import { ExprType } from "../../type/ExprType.js";
import { ExprStringBuilder } from "../ExprStringBuilder.js";
export declare class NotEqualsExpr extends Expr2<ExpressionValue, ExpressionValue, BooleanValue> {
    constructor(left: Expr<ExpressionValue>, right: Expr<ExpressionValue>);
    protected calculateResult(ctx: IfcExpressionContext, localCtx: Map<string, any>, leftOperand: ExpressionValue, rightOperand: ExpressionValue): ExprEvalError | BooleanValue;
    protected buildExprString(builder: ExprStringBuilder): void;
    getType(): ExprType;
}