REF: collect MultiIndex indexing, set methods (#31553)
REF: collect MultiIndex indexing, set methods (#31553)


dsm054/pandas,jreback/pandas,datapythonista/pandas,TomAugspurger/pandas,TomAugspurger/pandas,rs2/pandas,dsm054/pandas,jorisvandenbossche/pandas,jorisvandenbossche/pandas,TomAugspurger/pandas,jreback/pandas,jreback/pandas,pandas-dev/pandas,gfyoung/pandas,pandas-dev/pandas,gfyoung/pandas,pandas-dev/pandas,gfyoung/pandas,jreback/pandas,TomAugspurger/pandas,rs2/pandas,dsm054/pandas,datapythonista/pandas,gfyoung/pandas,jorisvandenbossche/pandas,jreback/pandas,datapythonista/pandas,pandas-dev/pandas,datapythonista/pandas,jorisvandenbossche/pandas,dsm054/pandas,rs2/pandas,gfyoung/pandas,dsm054/pandas,rs2/pandas