def host_externally=(new_val)
      return nil if new_val == @host_externally
      raise JSS::InvalidDataError, 'New value must be true or false' unless new_val.jss_boolean?
      @host_externally = new_val
      @need_to_update = true
    end
def host_externally=(new_val)
      return nil if new_val == @host_externally
      raise JSS::InvalidDataError, 'New value must be true or false' unless new_val.jss_boolean?
      @host_externally = new_val
      @need_to_update = true
    end
Set whether or not this app's .ipa is hosted outside the Jamf server

 @param new_val[Boolean] The new value

 @return [void]