Implement class method MassOjbect::parse_all for turning an array of results into an array of objects.
Implement ActiveRecord::Associations::has_many and ActiveRecord::Associations::belongs_to.
Implement BelongsToAssocParams helper to extract argument parsing logic from belongs_to.
Implement HasManyAssocParams helper to extract argument parsing logic from has_many.
Committing without testing leads to extra commits for silly mistakes.