Function calling doesn't work with functions that take no arguments. #423
Description
Description of the bug:
My app ran well with function calling 12 days ago. However, when I tried to use this app today, Gemini API raised an InvalidArgument exception. And I managed to figure out it will only occurs when tools argument is not empty.
Actual vs expected behavior:
It raises an InvalidArgument exception. The expected behaviour is that it should return a normal response like it used to.
Any other information you'd like to share?
Minimal reproducible example:
import models, chatModel
import tools
def calculate(expression: str) -> int | float | str:
"""
Calculate an expression using Python 3 and return the number value.
You can use the following operators: +, -, *, /, **, %, //, and ().
You are allowed to use math library.
Args:
expression (str): The expression to evaluate.
Returns:
int | float | str: The result of the expression.
"""
return eval(expression, globals(), locals())
def time() -> str:
"""
Get the current time in HH:MM:SS format.
Returns:
str: The current time in HH:MM:SS format.
"""
return tools.TimeProvider()
m = genai.GenerativeModel(model_name=config.USE_MODEL, system_instruction='You are an AI chatbot named Yoi.', safety_settings=models.MODEL_SAFETY_SETTING, generation_config={
'temperature': 0.9,
}, tools=[calculate, time])
s = m.start_chat()
print(s.send_message("Hello?"))Log:
Logger: using stdout
<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>
Traceback (most recent call last):
File "/home/chou/CyberWaifu-v2/aaa.py", line 38, in <module>
print(s.send_message("What is the time?"))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/chou/miniconda3/envs/cyberWaifuV2/lib/python3.12/site-packages/google/generativeai/generative_models.py", line 578, in send_message
response = self.model.generate_content(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/chou/miniconda3/envs/cyberWaifuV2/lib/python3.12/site-packages/google/generativeai/generative_models.py", line 331, in generate_content
response = self._client.generate_content(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/chou/miniconda3/envs/cyberWaifuV2/lib/python3.12/site-packages/google/ai/generativelanguage_v1beta/services/generative_service/client.py", line 827, in generate_content
response = rpc(
^^^^
File "/home/chou/miniconda3/envs/cyberWaifuV2/lib/python3.12/site-packages/google/api_core/gapic_v1/method.py", line 131, in __call__
return wrapped_func(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/chou/miniconda3/envs/cyberWaifuV2/lib/python3.12/site-packages/google/api_core/retry/retry_unary.py", line 293, in retry_wrapped_func
return retry_target(
^^^^^^^^^^^^^
File "/home/chou/miniconda3/envs/cyberWaifuV2/lib/python3.12/site-packages/google/api_core/retry/retry_unary.py", line 153, in retry_target
_retry_error_helper(
File "/home/chou/miniconda3/envs/cyberWaifuV2/lib/python3.12/site-packages/google/api_core/retry/retry_base.py", line 212, in _retry_error_helper
raise final_exc from source_exc
File "/home/chou/miniconda3/envs/cyberWaifuV2/lib/python3.12/site-packages/google/api_core/retry/retry_unary.py", line 144, in retry_target
result = target()
^^^^^^^^
File "/home/chou/miniconda3/envs/cyberWaifuV2/lib/python3.12/site-packages/google/api_core/timeout.py", line 120, in func_with_timeout
return func(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^
File "/home/chou/miniconda3/envs/cyberWaifuV2/lib/python3.12/site-packages/google/api_core/grpc_helpers.py", line 78, in error_remapped_callable
raise exceptions.from_grpc_error(exc) from exc
google.api_core.exceptions.InvalidArgument: 400 Request contains an invalid argument.