EliminatePwl canonicalizer for the largest sum atom

EliminatePwl.sum_largest_canon(expr, args)

## Arguments

expr

An Expression object

args

A list of Constraint objects

## Value

A canonicalization of the piecewise-lienar atom constructed by the k largest sums atom where the objective function consists of the sum of variables t that is of the same dimension as the expression plus k