text: from sqlalchemy import Column, Integer
  from sqlalchemy.orm import relationship
  from sqlalchemy.ext.declarative import declared_attr
  
  
  class MxMasaKerja:
      __tablename__ = 'masa_kerja'
  
      @declared_attr
      def nilai(cls):
          return Column(Integer, primary_key=True, nullable=False)
  
      '''
      def mx_init(
          self,
          nilai
      ):
          self.nilai = nilai
      '''
  
      def mx_reconstruct(self):
          pass
  
      def mx_repr(self):
          return "nilai=%r" % (self.nilai,)
  
      def mx_init_repr(self):
          return {
              'nilai': self.nilai
          }
  