def METHOD_NAME(self, df_t1):
    df_t1.rename(columns=self.t0_map, inplace=True)
    drop_cols = []
    for t0_col in self.t0_cols:
        if t0_col not in self.t0_map.keys():
            drop_cols.append(t0_col)
    df_t1.drop(drop_cols, axis=1, inplace=True)