/**
 * `TdcDiagnosticError` — single error type carried across all TDC pipeline
 * failures that have a point-in-source location. Parse-time, validate-
 * time, and (where feasible) render-time errors all funnel through this
 * class, so the CLI and the library API can catch one thing and pretty-
 * print it uniformly.
 *
 * The `message` property is built from the collected diagnostics so
 * callers that just log `err.message` still get useful output; callers
 * that want the full Rust-style formatted block should call
 * `formatDiagnostics(err.diagnostics, err.source)`.
 */
import type { Diagnostic } from './diagnostic.js';
export declare class TdcDiagnosticError extends Error {
    readonly diagnostics: readonly Diagnostic[];
    /** Original DSL source, when available — used by the formatter for snippets. */
    readonly source?: string;
    constructor(diagnostics: readonly Diagnostic[], source?: string);
}
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