def unbind(*instances)
      service_bindings.each do |b|
        if instances.include? b.service_instance
          b.delete!
        end
      end

      self
    end
def unbind(*instances)
      service_bindings.each do |b|
        if instances.include? b.service_instance
          b.delete!
        end
      end

      self
    end
Unbind services from application.