Function column 

pub fn column<'a, 'b, T, W, Message, Theme, Renderer>(
    header: impl Widget<Message, Theme, Renderer> + 'a,
    view: impl Fn(T) -> W + 'b,
) -> Column<'a, 'b, T, Message, Theme, Renderer>
where
    T: 'a,
    W: Widget<Message, Theme, Renderer> + 'a,

Creates a new Column with the given header and view function.

The view function will be called for each row in a Table and it must produce the resulting contents of a cell.