CreateDataRequester creates a requester instance.

CreateDataServerOps creates a data server instance for runtime.

CreateMiningManager creates a new manager that mananges mining and data requests.

NewSubmitter creates a new TxnSubmitter instance.

DataRequester responsible for submitting tips to request data periodically if configured to do so.

DataServerOps is the driver for data server.

MiningMgr holds items for mining and requesting data.

TxnSubmitter just concrete type for txn submitter.