wp_register_border_support( WP_Block_Type $block_type )

19function wp_register_border_support( $block_type ) {20	// Setup attributes and styles within that if needed.21	if ( ! $block_type->attributes ) {22		$block_type->attributes = array();23	}24 25	if ( block_has_support( $block_type, '__experimentalBorder' ) && ! array_key_exists( 'style', $block_type->attributes ) ) {26		$block_type->attributes['style'] = array(27			'type' => 'object',28		);29	}30 31	if ( wp_has_border_feature_support( $block_type, 'color' ) && ! array_key_exists( 'borderColor', $block_type->attributes ) ) {32		$block_type->attributes['borderColor'] = array(33			'type' => 'string',34		);35	}36}