old_contents: # third party
  from sqlalchemy import Boolean
  from sqlalchemy import Column
  from sqlalchemy import ForeignKey
  from sqlalchemy import Integer
  from sqlalchemy import String
  
  # relative
  from . import Base
  
  
  class NodeRoute(Base):
      __tablename__ = "node_route"
  
      id = Column(Integer(), primary_key=True, autoincrement=True)
      node_id = Column(Integer, ForeignKey("node.id"))
      host_or_ip = Column(String(255))
      is_vpn = Column(Boolean(), default=False)
  
new_contents: # third party
  from sqlalchemy import Boolean
  from sqlalchemy import Column
  from sqlalchemy import ForeignKey
  from sqlalchemy import Integer
  from sqlalchemy import String
  
  # relative
  from . import Base
  
  
  class NodeRoute(Base):
      __tablename__ = "node_route"
  
      id = Column(Integer(), primary_key=True, autoincrement=True)
      node_id = Column(Integer, ForeignKey("node.id"))
      host_or_ip = Column(String(255), default="")
      is_vpn = Column(Boolean(), default=False)
      vpn_endpoint = Column(String(255), default="")
      vpn_key = Column(String(255), default="")
  
subject: ADD vpn_endpoint and vpn_key columns