/**
 * WGL012: Deprecated Property Usage
 *
 * Flags properties marked as deprecated in the GitLab CI schema.
 * Sources: description text mining (keywords like "Deprecated", "legacy").
 */
import type { PostSynthCheck, PostSynthContext, PostSynthDiagnostic } from "@intentius/chant/lint/post-synth";
/**
 * Core detection logic — exported for direct testing with synthetic data.
 */
export declare function checkDeprecatedProperties(ctx: PostSynthContext, deprecated: Map<string, Set<string>>): PostSynthDiagnostic[];
export declare const wgl012: PostSynthCheck;
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