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{{Mark|Updated with Version 9.1:}} {{Code|$lazy}} argument added; support for sequences.
→Functions
==lazy:cache==
{| width='100%'
* data of lazy items will be retrieved and cached inside the item.
* non-lazy items, or lazy items with cached data, will simply be passed through.
* If {{Code|$lazy}} is set to {{Code|true()}}, caching will be deferred until the data is eventually requested. Streaming, however, will be disabled: Data will always be cached before an input a stream will be generatedis returned.
Caching is advisable if an item will be processed more than once, or if the data may not be available anymore at a later stage.
|-
