def backend(self):
    'Return the backend option (merged with defaults)'
    defaults = self.globals.backend(self.backend_type)
    options = self.backend_options
    return (self.backend_type, {**defaults, **options})
Return the backend option (merged with defaults)
def backend(self):
    
    defaults = self.globals.backend(self.backend_type)
    options = self.backend_options
    return (self.backend_type, {**defaults, **options})