old_contents: import warnings
  warnings.warn("pymatgen.phasediagram.pdanalyzer has been moved pymatgen.phasediagram.analyzer. This stub "
                "will be removed in pymatgen 4.0.", DeprecationWarning)
  from .maker import *
new_contents: import warnings
  warnings.warn("pymatgen.phasediagram.pdanalyzer has been moved pymatgen.phasediagram.analyzer. This stub "
                "will be removed in pymatgen 4.0.", DeprecationWarning)
  from .analyzer import *
subject: Fix deprecation stub.