code: def _get_filename(class_name, language):
          
          name = str(class_name).strip()
          lang = str(language)
  
          # Name:
          if language in ['java', 'php']:
              name = "".join([name[0].upper() + name[1:]])
  
          # Suffix:
          suffix = {
              'c': 'c', 'java': 'java', 'js': 'js',
              'go': 'go', 'php': 'php', 'ruby': 'rb'
          }
          suffix = suffix.get(lang, lang)
  
          # Filename:
          return '{}.{}'.format(name, suffix)
docs: Generate the specific filename.
  
          Parameters
          ----------
          :param class_name : str
              The used class name.
  
          :param language : {'c', 'go', 'java', 'js', 'php', 'ruby'}
              The target programming language.
  
          Returns
          -------
              filename : str
              The generated filename.