code: def _default_call_in_place(op, x, out, **kwargs):
      
      out.assign(op.range.element(op._call_out_of_place(x, **kwargs)))
docs: Default in-place evaluation using ``Operator._call()``.
  
      Parameters
      ----------
      op : `Operator`
          Operator to call
      x : ``op.domain`` element
          Point in which to call the operator.
      out : ``op.range`` element
          An object in the operator range. The result of an operator
          evaluation is written here.
      kwargs:
          Optional arguments to the operator.