export interface ValidationFailure {
    field: string;
    rule: string;
    message: string;
    expected?: unknown;
    received?: unknown;
}
interface BaseOpts {
    code?: string;
    entity?: string;
    cause?: unknown;
}
export declare class RuntimeError extends Error {
    readonly code: string;
    readonly entity?: string;
    readonly cause?: unknown;
    constructor(message: string, opts: BaseOpts & {
        code: string;
    });
    toJSON(): Record<string, unknown>;
}
export declare class ValidationError extends RuntimeError {
    readonly errors: ValidationFailure[];
    constructor(message: string, opts: {
        entity?: string;
        errors: ValidationFailure[];
        cause?: unknown;
    });
    toJSON(): Record<string, unknown>;
}
export declare class NotFoundError extends RuntimeError {
    readonly id: unknown;
    constructor(message: string, opts: {
        entity: string;
        id: unknown;
        cause?: unknown;
    });
    toJSON(): Record<string, unknown>;
}
export declare class ConstraintViolationError extends RuntimeError {
    readonly kind: "unique" | "foreign_key" | "not_null" | "check";
    readonly table: string;
    readonly field?: string;
    readonly detail?: string;
    constructor(message: string, opts: {
        kind: "unique" | "foreign_key" | "not_null" | "check";
        table: string;
        field?: string;
        detail?: string;
        cause?: unknown;
    });
    toJSON(): Record<string, unknown>;
}
export declare class MetadataError extends RuntimeError {
    constructor(message: string, opts?: {
        entity?: string;
        cause?: unknown;
    });
}
export declare class UnsafeNameError extends RuntimeError {
    readonly value: string;
    constructor(message: string, opts: {
        value: string;
    });
    toJSON(): Record<string, unknown>;
}
export {};
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