polars.internals.expr.meta.ExprMetaNameSpace.pop#

ExprMetaNameSpace.pop() list[polars.internals.expr.expr.Expr][source]#

Pop the latest expression and return the input(s) of the popped expression.

Returns:
A list of expressions which in most cases will have a unit length.
This is not the case when an expression has multiple inputs.
For instance in a fold expression.