MooseX::Role::Parameterized::Parameters − base class for parameters
This is the base class for parameter objects. Currently empty, but I reserve the right to add things here.
Each parameterizable role gets their own anonymous subclass of this; "parameter" in MooseX::Role::Parameterized actually operates on these anonymous subclasses.
Each parameterized role gets their own instance of the anonymous subclass (owned by the parameterizable role).