code: def current_versions(self):
      # Only suggest versions starting with a number, like 0.x but not JS-0.x
      all_versions = self.jira_con.project_versions(self.project)
      unreleased_versions = [
          x for x in all_versions if not x.raw["released"]
      ]
  
      mainline_versions = self._filter_mainline_versions(
          unreleased_versions
      )
      return mainline_versions
  
imports: import configparser
  import os
  import pprint
  import re
  import subprocess
  import sys
  import requests
  import getpass
  from six.moves import input
  import six
label_desc: Use image node_id 3 for calling the JiraIssue obj's underlying member method code with example usage: obj.current_versions() and returns: mainline_versions