import type { AssignmentExpression, BinaryExpression, UnaryExpression } from 'estree';
import { RuleError } from '../../errors';
type ExpressionNodeType = AssignmentExpression | BinaryExpression | UnaryExpression;
export declare class NoUnspecifiedOperatorError<T extends ExpressionNodeType> extends RuleError<T> {
    readonly unspecifiedOperator: T['operator'];
    constructor(node: T);
    explain(): string;
    elaborate(): string;
}
export declare class StrictEqualityError extends NoUnspecifiedOperatorError<BinaryExpression> {
    explain(): "Use === instead of ==." | "Use !== instead of !=.";
    elaborate(): string;
}
declare const _default: import("../../types").Rule<import("../../../types").NodeTypeToNode<"BinaryExpression" | "UnaryExpression">, "no-unspecified-operator">;
export default _default;