import { type LocalizedFieldValue } from '../utilities/normalizedFieldValues.js';
import type { SingleLineEditorConfiguration } from './appearance/single_line.js';
import type { StringRadioGroupEditorConfiguration } from './appearance/string_radio_group.js';
import type { StringSelectEditorConfiguration } from './appearance/string_select.js';
import type { EnumValidator } from './validators/enum.js';
import type { FormatValidator } from './validators/format.js';
import type { LengthValidator } from './validators/length.js';
import type { RequiredValidator } from './validators/required.js';
import type { UniqueValidator } from './validators/unique.js';
export type StringFieldValue = string | null;
export declare function isStringFieldValue(value: unknown): value is StringFieldValue;
export declare function isLocalizedStringFieldValue(value: unknown): value is LocalizedFieldValue<StringFieldValue>;
export type StringFieldValidators = {
    /** 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;
    /** Accept strings only with a specified number of characters */
    length?: LengthValidator;
    /** Accepts only strings that match a specified format */
    format?: FormatValidator;
    /** Only accept a specific set of values */
    enum?: EnumValidator;
};
export type StringFieldAppearance = {
    editor: 'single_line';
    parameters: SingleLineEditorConfiguration;
} | {
    editor: 'string_radio_group';
    parameters: StringRadioGroupEditorConfiguration;
} | {
    editor: 'string_select';
    parameters: StringSelectEditorConfiguration;
} | {
    /** Plugin ID */
    editor: string;
    /** Plugin configuration */
    parameters: Record<string, unknown>;
};