Pydantic Base Model as a List/Maping type

[frenki123]

Hello all,

I have JSON in following format (lets call it Object):
{ name: somename,
attributes:[{tag:tag1,value:value1}...]
...}
What I want to do is represent attributes as a class Attributes, so I can add method which will find value from passed tag. What I did is something like this:

class Attribute(BaseModel):
  tag:str
  value:str

class Attributes(BaseModel):
  attributes:list[Attribute]
  def get_attribute_val(tag):
.......

class Object(BaseModel):
   name:str
   attributes:Attributes #My error

With this I always get model_type error for attributes in Object class. When I pass attributes:[{tag:tag1,value:value1}...] to only Attributes class everything works as I want.
Do you have some suggestion how to solve this. Thanks.