parameters: (self)
return_statement: return list(self._vtz.keys())
docstring: Retrieves the available time zones as a list.
docstring_summary: Retrieves the available time zones as a list.
docstring_tokens: Retrieves the available time zones as a list .
function: def keys(self):
          """
          Retrieves the available time zones as a list.
          """
          return list(self._vtz.keys())
function_tokens: def keys ( self ) : return list ( self . _vtz . keys ( ) )