TreeViewColumn.packStart

void packStart(gtk.cell_renderer.CellRenderer cell, bool expand)

Packs the cell into the beginning of the column. If expand is false, then the cell is allocated no more space than it needs. Any unused space is divided evenly between cells for which expand is true.

Parameters

`cell`	The #GtkCellRenderer.
`expand`	true if cell is to be given extra space allocated to tree_column.