Works on objects returned by `update_grid()`; calls `update_grid()`.
# S3 method for pumpgridresult
update(object, ...)
A pumpgridresult object.
Additional arguments, i.e., the arguments you would pass to the `pump_power()`, `pump_mdes()` and `pump_sample()`, that will replace the existing parameters of the object.
[update_grid()]