public function get_html_builder() {
		if ( ! $this->html_builder ) {
			$this->html_builder = new Html_Form();
		}

		$this->html_builder->global_attributes( array_merge( (array) $this->field->args( 'attributes' ), [
			'data-hash'     => $this->field->hash_id(),
			'data-iterator' => $this->field->is_repeatable() ? $this->iterator : null,
		] ) );

		return $this->html_builder;
	}