Is `ift.operators.operator._FunctionApplier` exposed to the NIFTy namespace? If not, why?
I just had the case where I wanted to prepend a pointwise operator to a give operator. For appending a pointwise operator, we have the syntax
op.ptw(), but do we also have a direct way to prepend an operator?
What I came up with in a hunch was
op @ ift.ScalingOperator(op.domain, 1.).abs(), but that is just horrible.
Is there a simple way to do this that I forgot? If not, why don't we expose