code: def build_code(self, data):
      value, ignore_case, is_char = self.parse_cfg()
      flags = re.UNICODE
      if ignore_case:
          flags |= re.IGNORECASE
  
      regex_exp = "r'^ *{value} *$'.format(value=re.escape({value}))"
      if is_char:
          regex_exp = (
              "r'^.*[{value}].*$'.format(value=re.escape({value}))"
          )
      regex_exp = regex_exp.format(value=value)
  
      replace_with = get_replacement_value_as_str(
          self.cfg, "replace", data[self.col]
      )
  
      return (
          "\nimport re\n\n"
          "regex_pat = re.compile({regex_exp}, flags={flags})\n"
          "df.loc[:, '{name}'] = df['{col}'].replace(regex_pat, {replace}, regex=True)"
      ).format(
          name=self.name or self.col,
          col=self.col,
          regex_exp=regex_exp,
          flags=flags,
          replace=replace_with,
      )
  
imports: import re
  import numpy
  import pandas
  from six import string_types
  import dtale.global_state
  from dtale.column_builders import ReplaceColumnBuilder
  from dtale.utils import classify_type, find_dtype, dict_merge
label_desc: Use image node_id 4 for calling the StringReplacement obj's underlying member method code with example usage: obj.build_code(data) and returns: str