  TemplateTagger is a C++ package for jet substructure analysis with Template
Overlap Method. The code operates with arbitrary models within fixed-order
perturbation theory and arbitrary kinematics. Specialized template generation
classes allow the user to implement any model for a decay of a boosted heavy
object. In addition to template overlap, the code provides ability to calculate
other template shape and energy flow observables. We describe in detail the
structure of the package, as well as provide examples of its usage.
