Array

The following methods are available under the expr.arr attribute.

Expr.arr.max()	Compute the max values of the sub-arrays.
Expr.arr.min()	Compute the min values of the sub-arrays.
Expr.arr.sum()	Compute the sum values of the sub-arrays.
Expr.arr.unique(*[, maintain_order])	Get the unique/distinct values in the array.