text: from pydantic import BaseModel, Field
  
  from pyqtschema import build_example
  
  
  class UnitValue(BaseModel):
      value: float
      unit: str
  
  
  class Limits(BaseModel):
      name: str = Field(default='dummy', description='stored in name-column')
      upper: UnitValue
      lower: UnitValue
  
  
  if __name__ == '__main__':
      build_example(Limits.schema())
  