export interface ExpressionContext {
    $node: (key: string) => {
        output: unknown;
    };
    $input: unknown;
    $execution: {
        id: string;
        error?: {
            code: string;
            message: string;
            details?: unknown;
        } | null;
    };
    $itemIndex?: number;
}
export declare function resolveExpressions(input: unknown, context: ExpressionContext): unknown;
export declare class ExpressionError extends Error {
    readonly expression: string;
    constructor(message: string, expression: string);
}
export declare function buildExpressionContext(nodeOutputs: Map<string, unknown>, workflowInput: unknown, execution: {
    id: string;
    error?: {
        code: string;
        message: string;
        details?: unknown;
    } | null;
}, itemIndex?: number): ExpressionContext;
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