import { default as React } from 'react';
import { FieldWidgetComponentProps } from './types.js';
/**
 * Signature field widget - provides a signature pad for capturing signatures
 * Outputs signature as a base64 PNG image
 *
 * ## Naming, and the half that is deliberately absent (objectui#3318)
 *
 * This widget forwarded nothing a host handed it — every branch below wrote its
 * attributes by hand — so its visible label pointed `for` at an id no element
 * in the row carried, and the rendered help text had zero consumers. Measured
 * on `origin/main`, a real form, this field required and freshly failed:
 *
 * ```
 * signature  labelFor=…-form-item -> DANGLING  descConsumers=0  ids=[]
 * ```
 *
 * The name and the description arrive here, on the container, through
 * {@link toHostGroupProps} — the objectui#3961 route for a widget whose surface
 * no `<label for>` can reach (`<canvas>` is not a labelable element), and which
 * therefore declares `labelling: 'group'` in `FIELD_WIDGET_LABELLING`.
 * `'instead-of-the-inputs'` because this field renders no input of its own for
 * the description to land on: the Clear button is auxiliary — it acts on the
 * value, it is not the value's control — the same reading that put
 * `geolocation`'s focusable "View on map" link on that side of the split.
 *
 * `aria-invalid` and `aria-required` are NOT here, and their absence is a
 * verdict rather than an omission. The drawing surface has no keyboard path at
 * all (measured: this row offers zero focusable elements while empty — the only
 * candidate, Clear, is `disabled` until something has been drawn), so there is
 * no element assistive technology would read a control state from. Marking the
 * container instead would announce a state with no control behind it — the
 * non-focusable-wrapper move objectui#3291 and #3318 both draw the line
 * against. The type is recorded in that sweep's NOT_APPLICABLE ledger with a
 * guard that turns red the day a real control appears here.
 */
export declare function SignatureField({ value, onChange, readonly, ...props }: FieldWidgetComponentProps<string>): React.JSX.Element;