The function turns a MonoClust-similar object into MonoClust object so it
can use supported functions for MonoClust such as print.MonoClust() and
plot.MonoClust().
as_MonoClust(x, ...)# S3 method for default
as_MonoClust(x, ...)
An object that can be coerced to MonoClust object.
For extensibility.
as_MonoClust() is an S3 generic. The function itself doesn't run unless
it is implemented for another similar object. Currently, this function is not
implemented within monoClust package.