code: def get_last_line(self, suffix):
      line = 0
      if self._children_groups:
          children_group = self._children_groups[-1]
          last_leaf = _get_previous_leaf_if_indentation(
              children_group.last_line_offset_leaf
          )
  
          line = last_leaf.end_pos[0] + children_group.line_offset
  
          # Newlines end on the next line, which means that they would cover
          # the next line. That line is not fully parsed at this point.
          if _ends_with_newline(last_leaf, suffix):
              line -= 1
      line += len(split_lines(suffix)) - 1
  
      if (
          suffix
          and not suffix.endswith("\n")
          and not suffix.endswith("\r")
      ):
          # This is the end of a file (that doesn't end with a newline).
          line += 1
  
      if self._node_children:
          return max(
              line, self._node_children[-1].get_last_line(suffix)
          )
      return line
  
imports: import re
  import difflib
  from collections import namedtuple
  import logging
  from parso.utils import split_lines
  from parso.python.parser import Parser
  from parso.python.tree import EndMarker
  from parso.python.tokenize import PythonToken, BOM_UTF8_STRING
  from parso.python.token import PythonTokenTypes
label_desc: Use image node_id 5 for calling the _NodesTreeNode obj's underlying member method code with example usage: obj.get_last_line(suffix) and returns: line, max