NewInbox creates a new Inbox.

NewInboxWithAdmissionControl creates a new Inbox that does admission control on responses received from DistSQL.

NewInboxWithFlowCtxDone creates a new Inbox when the done channel of the flow context is available.

NewOutbox creates a new Outbox.

Inbox is used to expose data from remote flows through a colexecop.Operator interface.

Outbox is used to push data from local flows to a remote endpoint.