Message format for sending data to other chains via the accumulator program
When serialized with PythNet serialization format, each message starts with a unique
1-byte discriminator, followed by the serialized struct data in the definition(s) below.
PublisherStakeCapsMessage is a global message that aggregates data from all price feeds
we can’t associate it with a specific feed, so we use a feed id that is not used by any price feed