Make objects json serializable?

[gwpl]

Feature Description

Trying to adopt example to pretty print json

#!/usr/bin/env python3

from elevenlabs.client import ElevenLabs
import json

client = ElevenLabs(
#  api_key="YOUR_API_KEY", # Defaults to ELEVEN_API_KEY
)

response = client.voices.get_all()
audio = client.generate(text="Hello there!", voice=response.voices[0])

print(json.dumps(response.voices, indent=2))

currently trying in differnt ways and does not seem to work with json pretty printing...

Use Case

No response

Alternatives Considered

No response

Additional Context

No response

[gwpl]

I also tried to make output to be JSONL (JSON Lines https://jsonlines.org/ ) and it also failed:

import json                                                  
                                                              
 for voice in response.voices:                                
     print(json.dumps(voice)) 

error:

Traceback (most recent call last):
  File "/.../elevenlabs_list_available_voices.py", line 14, in <module>
    print(json.dumps(voice))
          ^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/json/__init__.py", line 231, in dumps
    return _default_encoder.encode(obj)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/json/encoder.py", line 200, in encode
    chunks = self.iterencode(o, _one_shot=True)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/json/encoder.py", line 258, in iterencode
    return _iterencode(o, 0)
           ^^^^^^^^^^^^^^^^^

[dglinyanov]

Hi there, as soon as response is Pydantic BaseModel, you can pretty print using .json() method:

print(response.json(indent=2))

Also you can print each of response.voices item the same way, because they are also Pydantic models:

print(response.voices[0].json(indent=2))

Hope that helps!

[gwpl]

Thanks you!

So, this works:

print(response.json(indent=2))

This does not work ("voices has no attribute json"):

print(response.voices.json(indent=2))

Iterating over voices , works:

for voice in response.voices:
    print(voice.json())

So, looks like each "voice" and "reponse" are Pydantic, but "voices" object is not Pydantic.

[dglinyanov]

Yes, that's correct. response.voices is a plain list, so it has no .json() method. I am not very familiar with both Pydantic and Fern, so I think it is possible to create Pydantic model for a list of objects, but I do not have any idea if Fern could autogenerate something like that.