New creates a new requester engine, operating on the provided network channel, and requesting entities from a node within the set obtained by applying the provided selector filter.

WithBatchInterval sets a custom interval at which we scan for pending items and batch them for requesting.

WithBatchThreshold sets a custom threshold for the maximum size of a batch.

WithRetryAttempts sets the number of attempts we will make before we give up on retrying.

WithRetryFunction sets the function at which the retry interval increases.

WithRetryInitial sets the initial interval for dispatching a request for the second time.

WithRetryMaximum sets the maximum retry interval at which we will retry.

WithValidateStaking sets the flag which determines if the target and origin must be checked for staking.

Engine is a generic requester engine, handling the requesting of entities on the flow network.

CreateFunc is a function that creates a `flow.Entity` with an underlying type so that we can properly decode entities transmitted over the network.

HandleFunc is a function provided to the requester engine to handle an entity once it has been retrieved from a provider.