NewAgent returns a new Agent object, ready to be started.

Run is the entrypoint of our code, which starts the agent.

Truncate checks that the span resource, meta and metrics are within the max length and modifies them if they are not.

MaxTypeLen the maximum length a span type can have.

Year2000NanosecTS is an arbitrary cutoff to spot weird-looking values.

Agent struct holds all the sub-routines structs and make the data flow between them.

ProcessedTrace represents a trace being processed in the agent.