import type { Scope } from '../types';
export interface ExpressionRuntime {
    readonly mode: 'standard' | 'csp';
    evaluate(expression: string, scope: any): any;
    execute(expression: string, scope: any, event?: Event): any;
    parseScope(expression: string): Scope | undefined;
    createMethod(parameters: string[], body: string): (...args: any[]) => any;
}
export declare function setExpressionRuntime(runtime: ExpressionRuntime): void;
export declare function expressionRuntime(): ExpressionRuntime;
export declare function expressionRuntimeMode(): ExpressionRuntime['mode'];
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