A combine proc merges multiple upstream inputs into one output.

A mux proc merges multiple upstream inputs into one output like combine but labels each batch.

rename renames one or more fields in a record.

Context provides states used by all procs to provide the outside context in which they are running.

Result is a convenient way to bundle the result of Proc.Pull() to send over channels.

proc.Interface is the interface to objects that operate on Batches of zed.Records and are arranged into a flowgraph to perform pattern matching and analytics.