pisces.models.galaxy_clusters.spherical.MagnetizedSphericalGalaxyClusterModel.rename_field# MagnetizedSphericalGalaxyClusterModel.rename_field(old_name: str, new_name: str)# Rename an existing field in the model. Changes the field name in both memory and the HDF5 file. Parameters: old_name (str) – Current name of the field. new_name (str) – New name for the field. Raises: KeyError – If old_name does not exist or new_name already exists.