The Web streams spec requires promise creation at numerous points, often in hot paths and often invisible to users. Each read() call doesn't just return a promise; internally, the implementation creates additional promises for queue management, pull() coordination, and backpressure signaling.
// promise to either yield a chunk of data or indicate we're
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There are two types of bats at Guestwick: Common Pipistrelles and Natterer's. They roost high up in the rafters.