ClearSession removes all categories and metrics.

Counter creates a new counter metric (or returns an existing one if one already exists with this name and category).

Debug returns debug metrics that were recording during this session.

DebugCounter creates a new debug counter metric (or returns an existing one if one already exists with this name and category).

DebugTimer returns a new debug timer (or returns an existing one if one exists with this category and name).

General returns general metrics that were recording during this session.

Timer returns a new timer (or returns an existing one if one exists with this category and name).