The arguments to the __init__ method, which can only be passed as keyword-only arguments, are documented as having a default of None.

[pynista]

Describe the bug
The arguments to the init method, which can only be passed as keyword-only arguments, are documented as having a default of None.

To Reproduce

class Foo:
    """Test class."""
    def __init__(self, a: int, *, b: str, c: float):
        """Init Foo

        :param a: first argument
        :type a: int

        :param b: second argument
        :type b: str

        :param c: third argument
        :type c: float
        """
        pass

Foo
---
.. module:: pytelegrambots.for_so

.. autoclass:: Foo
    :members:
    :special-members: __init__

Result:

Expected behavior
A clear and concise description of what you expected to happen:
(edited screenshot)

Environment info

• OS: [Ubuntu 18.04]
• Python version: [3.7.2]
• Sphinx version: [sphinx-build 3.0.1]
• Sphinx extensions: [sphinx.ext.autodoc, 'sphinx.ext.viewcode']

[tk0miya]

Fixed by #7511. Thank you for reporting!