Decorator that marks a class as an NgModule and supplies configuration metadata.
@NgModule ({ providers?: (Provider | EnvironmentProviders)[] | undefined; declarations?: (any[] | Type<any>)[] | undefined; imports?: (any[] | Type<any> | ModuleWithProviders<{}>)[] | undefined; exports?: (any[] | Type<any>)[] | undefined; bootstrap?: (any[] | Type<any>)[] | undefined; schemas?: (any[] | SchemaMetadata)[] | undefined; id?: string | undefined; jit?: true | undefined;})