Documentation for budget items of the same name
When adding nb.Noise/nb.Calibration objects to a budget, the object is copied into the nb.Budget class namespace with the object's original name. This means you cannot import nb.Noise/nb.Calibrations objects with the same name from different files as they will conflict with each other in the nb.Budget namespace. This issue is subtle and relatively uncommon but it might be worth mentioning somewhere in the documentation.