"`data-yield` specifies that this node should be a render target for any view renderings that specify they should be rendered into a yield with this name. For example, `data-yield="myYieldNode"` can be rendered into by using `new Batman.View(contentFor: 'myYieldNode')`.  The special case of `data-yield="main"` will be the render target for any view rendered by a controller action. This can mean the implicit render that happens by default at the end of a controller action or by explicitly calling `@render` inside a controller."