code: def replace_abbreviation_as_sentence_boundary(self):
      sent_starters = "|".join(
          (
              r"(?=\s{}\s)".format(word)
              for word in self.SENTENCE_STARTERS
          )
      )
      regex = r"(U∯S|U\.S|U∯K|E∯U|E\.U|U∯S∯A|U\.S\.A|I|i.v|I.V)∯({})".format(
          sent_starters
      )
      self.text = re.sub(regex, "\\1.", self.text)
      return self.text
  
file_path: pySBD/pysbd/abbreviation_replacer.py
imports: import re
  from pysbd.utils import Text
label_desc: Use image node_id 3 for calling the AbbreviationReplacer obj's underlying member method code with example usage: obj.replace_abbreviation_as_sentence_boundary() and returns: self