text: from typing import List
  from pydantic import BaseModel, ValidationError, conint
  
  class Location(BaseModel):
      lat = 0.1
      lng = 10.1
  
  class Model(BaseModel):
      is_required: float
      gt_int: conint(gt=42)
      list_of_ints: List[int] = None
      a_float: float = None
      recursive_model: Location = None
  
  data = dict(
      list_of_ints=['1', 2, 'bad'],
      a_float='not a float',
      recursive_model={'lat': 4.2, 'lng': 'New York'},
      gt_int=21,
  )
  
  try:
      Model(**data)
  except ValidationError as e:
      print(e)
  
  try:
      Model(**data)
  except ValidationError as e:
      print(e.json())
  