code: def CheckDependencies(self, verbose_output=True):
      
      print('Checking availability and versions of dependencies.')
      check_result = True
  
      for module_name, dependency in sorted(self.dependencies.items()):
        if module_name == 'sqlite3':
          result, status_message = self._CheckSQLite3()
        else:
          result, status_message = self._CheckPythonModule(dependency)
  
        if not result and module_name == 'lzma':
          dependency.name = 'backports.lzma'
          result, status_message = self._CheckPythonModule(dependency)
  
        if not result and not dependency.is_optional:
          check_result = False
  
        self._PrintCheckDependencyStatus(
            dependency, result, status_message, verbose_output=verbose_output)
  
      if check_result and not verbose_output:
        print('[OK]')
  
      print('')
      return check_result
docs: Checks the availability of the dependencies.
  
      Args:
        verbose_output (Optional[bool]): True if output should be verbose.
  
      Returns:
        bool: True if the dependencies are available, False otherwise.