code: def default_format_text(issue_no):
      return "#{0}".format(issue_no)
  
file_path: imbalanced-learn/doc/sphinxext/sphinx_issues.py
imports: import re
  from docutils import nodes, utils
  from sphinx.util.nodes import split_explicit_title
label_desc: Use image node_id 2 for calling the IssueRole obj's underlying member method code with example usage: obj.default_format_text(issue_no) and returns: str