import { LitElement } from 'lit';
declare const TextArea_base: (new (...args: any[]) => import("../../../common/mixins/form-input").FormMixinInterface) & typeof LitElement;
/**
 * Text area.
 * @fires on-input - Captures the input event and emits the selected value and original event details. `detail:{ origEvent: InputEvent,value: string }`
 * @prop {number} minLength - Minimum number of characters.
 * @prop {number} maxLength - Maximum number of characters.
 * @slot tooltip - Slot for tooltip.
 * @attr {string} [value=''] - The value of the input.
 * @attr {string} [name=''] - The name of the input, used for form submission.
 * @attr {string} [invalidText=''] - The custom validation message when the input is invalid.
 */
export declare class TextArea extends TextArea_base {
    static styles: import("lit").CSSResult;
    /** Label text. */
    accessor label: string;
    /** Optional text beneath the input. */
    accessor caption: string;
    /** Input placeholder. */
    accessor placeholder: string;
    /** Makes the input required. */
    accessor required: boolean;
    /** Input disabled state. */
    accessor disabled: boolean;
    /** Input readonly state. */
    accessor readonly: boolean;
    /** Maximum number of characters. */
    accessor maxLength: number;
    /** Minimum number of characters. */
    accessor minLength: number;
    /** Set it to `true`, if text area is not resizeable. */
    accessor notResizeable: boolean;
    /** Visually hide the label. */
    accessor hideLabel: boolean;
    /** textarea rows attribute. The number of visible text lines.
     * **Required** when `aiConnected` is set to `true`.
     */
    accessor rows: number;
    /** Set this to `true` for AI theme. */
    accessor aiConnected: boolean;
    /** Maximum number of visible text lines allowed. Default `5` rows. <br />
     * **NOTE**: Applies only when `aiConnected` is set to `true`. <br />
     * `rows` is always less than or equal to `maxRowsVisible` and `rows` is used as minimum number of visible text lines.
     */
    accessor maxRowsVisible: number;
    /** Customizable text strings. */
    accessor textStrings: {
        requiredText: string;
        errorText: string;
    };
    /** Control for native browser autocomplete. Use `on`, `off`, or a space-separated `token-list` describing autocomplete behavior.*/
    accessor autoComplete: string;
    /** Internal text strings.
     * @internal
     */
    accessor _textStrings: {
        requiredText: string;
        errorText: string;
    };
    /**
     * Queries the <textarea> DOM element.
     * @ignore
     */
    accessor textareaEl: HTMLTextAreaElement;
    render(): import("lit-html").TemplateResult<1>;
    willUpdate(changedProps: any): void;
    private handleInput;
    private _updateVisibleRows;
    updated(changedProps: any): void;
    private _validate;
}
declare global {
    interface HTMLElementTagNameMap {
        'kyn-text-area': TextArea;
    }
}
export {};
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