text: from app.serializer import ma
  from marshmallow import fields
  
  from app.models import User
  
  class UserSchema(ma.Schema):
      username = fields.Str(required=True)
      password = fields.Str(required=True)
  
  class RegisterSchema(ma.Schema):
      full_name = fields.Str(required=True)
      username = fields.Str(required=True)
      email = fields.Email(required=True)
      password = fields.Str(required=True)
  
  class ListUserSchema(ma.Schema):
      id = fields.Integer(required=True)
      full_name = fields.Str()
      username = fields.Str()
      email = fields.Email()
  
  
  
  
  
  