import { Option as OptionComposition } from '@slack/types';
import { JSXSlack } from '../../jsx';
import { BuiltInComponent } from '../../jsx-internals';
import { ConfirmableProps } from '../composition/Confirm';
import { OptionProps } from '../composition/Option';
import { InputComponentProps } from '../layout/Input';
import { ActionProps, AutoFocusibleProps, SingleSelectableProps, MultiSelectablePropsFrom } from './utils';
type OptionType = JSXSlack.Node<OptionProps> | OptionComposition;
interface SingleExternalSelectProps extends ActionProps, AutoFocusibleProps, ConfirmableProps, SingleSelectableProps {
    children?: never;
    /**
     * An initial option _exactly_ matched to provided options from external
     * source.
     *
     * It accepts the raw [option composition object](https://api.slack.com/reference/block-kit/composition-objects#option)
     * or `<Option>` element.
     */
    initialOption?: OptionType;
    /**
     * A length of typed characters to begin request to the external data source.
     */
    minQueryLength?: number;
    /** The placeholder text shown in select field. */
    placeholder?: string;
    /** An alias into `initialOption` prop. */
    value?: OptionType;
}
interface MultiExternalSelectProps extends MultiSelectablePropsFrom<SingleExternalSelectProps, 'initialOption' | 'value'> {
    /** In multiple select, you can set multiple values through array. */
    initialOption?: OptionType | OptionType[];
    value?: OptionType | OptionType[];
}
export type ExternalSelectProps = InputComponentProps<SingleExternalSelectProps | MultiExternalSelectProps>;
/**
 * The interactive component or input component for
 * [the `external_select` element](https://api.slack.com/reference/block-kit/block-elements#external_select) and
 * [the `multi_external_select` element](https://api.slack.com/reference/block-kit/block-elements#external_multi_select).
 *
 * Provide a selectable menu element from dynamic options supplied by the
 * external source.
 *
 * Slack app will need to set up the supplier of option elements first.
 * [Learn about external source in Slack documentation.](https://api.slack.com/reference/block-kit/block-elements#external_select)
 * `<SelectFragment>` component would be useful to supply dynamic options
 * through JSX.
 *
 * @example
 * ```jsx
 * <Blocks>
 *   <Actions>
 *     <ExternalSelect
 *       actionId="category"
 *       placeholder="Select category..."
 *       minQueryLength={2}
 *     />
 *   </Actions>
 * </Blocks>
 * ```
 *
 * @return The partial JSON of a block element for selecting from the external
 *   data source, or `input` layout block with it
 */
export declare const ExternalSelect: BuiltInComponent<ExternalSelectProps>;
export {};