import { type LocalizedFieldValue } from '../utilities/normalizedFieldValues.js';
import type { LinkEmbedEditorConfiguration } from './appearance/link_embed.js';
import type { LinkSelectEditorConfiguration } from './appearance/link_select.js';
import type { ItemItemTypeValidator } from './validators/item_item_type.js';
import type { RequiredValidator } from './validators/required.js';
import type { UniqueValidator } from './validators/unique.js';
export type LinkFieldValue = string | null;
export declare function isLinkFieldValue(value: unknown): value is LinkFieldValue;
export declare function isLocalizedLinkFieldValue(value: unknown): value is LocalizedFieldValue<LinkFieldValue>;
export type LinkFieldValidators = {
    /** Only accept references to records of the specified models */
    item_item_type: ItemItemTypeValidator;
    /** Value must be specified or it won't be valid */
    required?: RequiredValidator;
    /** The value must be unique across the whole collection of records */
    unique?: UniqueValidator;
};
export type LinkFieldAppearance = {
    editor: 'link_select';
    parameters: LinkSelectEditorConfiguration;
} | {
    editor: 'link_embed';
    parameters: LinkEmbedEditorConfiguration;
} | {
    /** Plugin ID */
    editor: string;
    /** Plugin configuration */
    parameters: Record<string, unknown>;
};