/**
 * Options for creating diagnostic messages.
 */
export interface DiagnosticOptions {
    /** The title/summary of the diagnostic */
    title: string;
    /** Detailed message describing the diagnostic */
    message: string;
}
/**
 * Abstract base class for diagnostic messages.
 * Diagnostics are used to report issues during validation and processing.
 */
export declare abstract class Diagnostic {
    /** The title/summary of the diagnostic */
    title: string;
    /** Detailed message describing the diagnostic */
    message: string;
    /**
     * Creates a new diagnostic instance.
     * @param options The diagnostic configuration
     */
    constructor(options: DiagnosticOptions);
    /**
     * Determines if this diagnostic represents a fatal error.
     * @returns true if this diagnostic is fatal and should stop processing
     */
    abstract isFatal(): boolean;
    /**
     * Determines if this diagnostic is benign and can be ignored.
     * @returns true if this diagnostic is informational only
     */
    abstract isBenign(): boolean;
}
export interface ErrorDiagnosticOptions extends DiagnosticOptions {
    error: any;
}
export declare class ErrorDiagnostic extends Diagnostic {
    error: any;
    constructor(options: ErrorDiagnosticOptions);
    isFatal(): boolean;
    isBenign(): boolean;
}
export declare class WarningDiagnostic extends Diagnostic {
    isFatal(): boolean;
    isBenign(): boolean;
}
export declare class NoticeDiagnostic extends Diagnostic {
    isFatal(): boolean;
    isBenign(): boolean;
}
export declare class Diagnostics {
    #private;
    observations: Diagnostic[];
    isFatal(): boolean;
    isBenign(): boolean;
    add(diagnostic: Diagnostic): void;
    extend(...diagnostics: Diagnostics[]): void;
}