build/extracted-examples/guides/hack/13-contexts-and-capabilities/08-available-contexts-and-capabilities/write-props-collections.hack (7 lines of code) (raw):

// WARNING: Contains some auto-generated boilerplate code, see: // HHVM\UserDocumentation\MarkdownExt\ExtractedCodeBlocks\FilterBase::addBoilerplate namespace HHVM\UserDocumentation\Guides\Hack\ContextsAndCapabilities\AvailableContextsAndCapabilities\WritePropsCollections; function modify_collection()[write_props]: void { $v = Vector {}; $v[] = 'like this'; $m = Map {}; $m['or'] = 'like this'; }