class_docstr: Class for reading and processing standard format marker files and strings.
class_docstr_tok: ["Class","for","reading","and","processing","standard","format","marker","files","and","strings","."]
code: def __init__(self, filename=None, encoding=None):
      self._encoding = encoding
      if filename is not None:
          self.open(filename)
  
imports: import codecs
  import re
  from io import StringIO
  from xml.etree.ElementTree import Element, ElementTree, SubElement, TreeBuilder
  from nltk.data import PathPointer, find
label_desc: Use image node_id 1 to create a new StandardFormat object  with example: obj = StandardFormat(filename, encoding)