CheckboxControlValueAccessor

  class CheckboxControlValueAccessor extends BuiltInControlValueAccessor implements ControlValueAccessor { writeValue(value: any): void; override onChange: (_: any) => void; override onTouched: () => void; protected override setProperty(key: string, value: any): void; override registerOnTouched(fn: () => void): void; override registerOnChange(fn: (_: any) => {}): void; override setDisabledState(isDisabled: boolean): void;}