docstr: Set the columns that should not undergo dtype conversions.
  
  Currently, any column that is involved with date parsing will not
  undergo such conversions.
docstr_tok: ["Set","the","columns","that","should","not","undergo","dtype","conversions",".","Currently",",","any","column","that","is","involved","with","date","parsing","will","not","undergo","such","conversions","."]
code: def _set_noconvert_columns(self) -> None:
      """
      Set the columns that should not undergo dtype conversions.
  
      Currently, any column that is involved with date parsing will not
      undergo such conversions.
      """
      assert self.orig_names is not None
      # error: Cannot determine type of 'names'
  
      # much faster than using orig_names.index(x) xref GH#44106
      names_dict = {x: i for i, x in enumerate(self.orig_names)}
      col_indices = [names_dict[x] for x in self.names]  # type: ignore[has-type]
      # error: Cannot determine type of 'names'
      noconvert_columns = self._set_noconvert_dtype_columns(
          col_indices,
          self.names,  # type: ignore[has-type]
      )
      for col in noconvert_columns:
          self._reader.set_noconvert(col)
  
imports: from __future__ import annotations
  from collections import defaultdict
  from typing import TYPE_CHECKING
  import warnings
  import numpy
  from pandas._libs import lib, parsers
  from pandas.compat._optional import import_optional_dependency
  from pandas.errors import DtypeWarning
  from pandas.util._exceptions import find_stack_level
  from pandas.core.dtypes.common import pandas_dtype
  from pandas.core.dtypes.concat import concat_compat, union_categoricals
  from pandas.core.dtypes.dtypes import CategoricalDtype
  from pandas.core.indexes.api import ensure_index_from_sequences
  from pandas.io.common import dedup_names, is_potential_multi_index
  from pandas.io.parsers.base_parser import ParserBase, ParserError, is_index_col
label_desc: Use image node_id 3 for calling the CParserWrapper obj's underlying member method code with example usage: obj._set_noconvert_columns() without return types