import type { ControlInteractionOptions } from './control-interaction.js';
export interface FormGroupContextValue {
    /** Stable id for the field control; matches the FormGroup label's `for`. */
    inputId: string;
    /** Space-joined ids of the visible hint/error text, or undefined if none. */
    describedBy: string | undefined;
    /** Whether the field is currently showing an error. */
    invalid: boolean;
    /** Human-readable label and description for interaction adapters. */
    label: string;
    description?: string;
    required: boolean;
    error?: string;
    interaction?: ControlInteractionOptions | false;
}
export declare function setFormGroupContext(get: () => FormGroupContextValue): void;
export declare function tryGetFormGroupContext(): (() => FormGroupContextValue) | undefined;
/** Deterministic, collision-resistant id for a FormGroup that wasn't given one. */
export declare function nextFieldId(): string;
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