code: def parse_date_fields(year_col, month_col, day_col):
      year_col = _maybe_cast(year_col)
      month_col = _maybe_cast(month_col)
      day_col = _maybe_cast(day_col)
      return parsing.try_parse_year_month_day(
          year_col, month_col, day_col
      )
  
file_path: catboost/contrib/python/pandas/py2/pandas/io/date_converters.py
imports: import numpy
  from pandas._libs.tslibs import parsing
  from pandas.compat import map, range
label_desc: Use image node_id 2 for calling a global function with example usage: parse_date_fields(year_col, month_col, day_col) and returns: parsing