#NEWLINE# def get_versions( self , module ) : #NEWLINE# #INDENT# 'Returns a list of versions for a module.\n\n    Args:\n      module: A str containing the name of the module.\n\n    Returns:\n      A list of str containing the versions for the specified module.\n\n    Raises:\n      ModuleDoesNotExistError: The module does not exist.\n    ' #NEWLINE# if ( module not in module . _module_name_to_versions ) : #NEWLINE# #INDENT# raise ModuleDoesNotExistError ( ) #NEWLINE# #UNINDENT# return self . _module_name_to_versions [ module ]