Is it a bug in OC v2?

Need Help
#1

I am trying to add many models to a belongsToMany relationship as per the documentation here

$coach->secondary_types()->addMany([$life, $mens]);

and I have an exception Call to undefined method October\Rain\Database\Relations\BelongsToMany::addMany()

#2

This is for hasMany relations where multiple records need to be saved. For belongsToMany I think it is safe to use add() instead.

#3

indeed, I did multiple add, it is fine in my case as it is a simple seeder.