pub fn mount_before(
		&mut self,
		parent: &web_sys::Element,
	) -> Result<(), JsValue> {
		self.mount(parent, "beforebegin")
	}
// Mount Node after as previous sibling of parent
Mount Node after as previous sibling of parent
Mount Node after as previous sibling of parent
pub fn mount_before(
		&mut self,
		parent: &web_sys::Element,
	) -> Result<(), JsValue> {
		self.mount(parent, "beforebegin")
	}
pub fn mount_before ( & mut self , parent : & web_sys :: Element , ) -> Result < ( ) , JsValue > { self . mount ( parent , " " ) }
Mount Node after as previous sibling of parent
Mount Node after as previous sibling of parent
&mut self
parent
&web_sys::Element