text: from typing import List
  from sqlalchemy import Column, Integer, String
  from sqlalchemy.dialects.postgresql import ARRAY
  from sqlalchemy.ext.declarative import declarative_base
  from pydantic import BaseModel, constr
  
  Base = declarative_base()
  
  
  class CompanyOrm(Base):
      __tablename__ = 'companies'
      id = Column(Integer, primary_key=True, nullable=False)
      public_key = Column(String(20), index=True, nullable=False, unique=True)
      name = Column(String(63), unique=True)
      domains = Column(ARRAY(String(255)))
  
  
  class CompanyModel(BaseModel):
      id: int
      public_key: constr(max_length=20)
      name: constr(max_length=63)
      domains: List[constr(max_length=255)]
  
      class Config:
          orm_mode = True
  
  
  co_orm = CompanyOrm(
      id=123,
      public_key='foobar',
      name='Testing',
      domains=['example.com', 'foobar.com'],
  )
  print(co_orm)
  co_model = CompanyModel.from_orm(co_orm)
  print(co_model)
  