Pyth Price Feeds (Hedera)

Pull pattern: Pyth is not a fire-and-forget push feed. Fresh reads usually need a Hermes payload submitted on-chain (payable) before getPriceNoOlderThan.

Hermes → updatePriceFeeds{value: fee}(updateData) → getPriceNoOlderThan(priceId, maxAge)

Consumers may wrap Pyth behind a local interface; that is optional. Do not assume a project-specific adapter name.

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