NetworkAPI func The observer and access nodes need to be able to handle GetNetworkParameters and GetLatestProtocolStateSnapshot RPCs so this logic was split into the backendNetwork so that we can ignore the rest of the backend logic */.

DefaultClientTimeout is used when making a GRPC request to a collection node or an execution node.

DefaultConnectionPoolSize is the default size for the connection pool to collection and execution nodes.

DefaultLoggedScriptsCacheSize is the default size of the lookup cache used to dedupe logs of scripts sent to ENs limiting cache size to 16MB and does not affect script execution, only for keeping logs tidy.

DefaultMaxHeightRange is the default maximum size of range requests.

DefaultSnapshotHistoryLimit the amount of blocks to look back in state when recursively searching for a valid snapshot.

Backend implements the Access API.

InsufficientExecutionReceipts indicates that no execution receipt were found for a given block ID.

Retry implements a simple retry mechanism for transaction submission.

ConnectionFactory is used to create an access api client.