@rimbu/stream@rimbu/stream/customTransformerFastIterator<T,R>On this pageclass TransformerFastIterator<T,R>undocumentedExtends: FastIteratorBase<T>Type parametersNameDescriptionTundocumentedRundocumentedPropertiessourceIteratorundocumentedDefinitionreadonly sourceIterator: FastIterator<T>;transformerInstanceundocumentedDefinitionreadonly transformerInstance: Reducer.Instance<T, StreamSource<R>>;MethodsfastNextundocumentedDefinitionfastNext<O>(otherwise?: OptLazy<O>): R | O;Type parametersNameDescriptionOParametersNameTypeDescriptionotherwiseOptLazy<O>OverridesFastIteratorBase.fastNextnextundocumentedDefinitionnext(): IteratorResult<T>;OverridesFastIteratorBase.next