ureg.wraps does not work with var-positional arguments

[ikondov]

I want to wrap the math.gcd function using ureg.wraps utility function (decorator). The wrapped function works only with one parameter. Called without parameters and with more than one parameter I get various behaviors / errors:

>>> import pint
>>> import math
>>> ureg = pint.UnitRegistry()
>>> gcd = ureg.wraps('=A', '=A')(math.gcd)
>>> gcd(1)
<Quantity(1, 'dimensionless')>
>>> gcd(ureg.Quantity(1))
<Quantity(1, 'dimensionless')>
>>> gcd(ureg.Quantity(1, 'm'))
<Quantity(1, 'meter')>
>>> gcd(ureg.Quantity(1), ureg.Quantity(2))
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "pint/pint/registry_helpers.py", line 293, in wrapper
    result = func(*new_values, **new_kw)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: 'Quantity' object cannot be interpreted as an integer
>>> gcd()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "pint/pint/registry_helpers.py", line 289, in wrapper
    new_values, new_kw, values_by_name = converter(
                                         ^^^^^^^^^^
  File "pint/pint/registry_helpers.py", line 128, in _converter
    values.append(kw[param_name])
                  ~~^^^^^^^^^^^^
KeyError: 'integers'
>>> gcd(1, 2)
<Quantity(1, 'dimensionless')>

When I create a function with *args myself the same error occurs called without parameters and another error occurs with more than one pint quantity parameters:

>>> import pint
>>> ureg = pint.UnitRegistry()
>>> def f(*x: int) -> int:
...     return sum(x)
...
>>> f_wrapped = ureg.wraps('=A', '=A')(f)
>>> f_wrapped()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "pint/pint/registry_helpers.py", line 289, in wrapper
    new_values, new_kw, values_by_name = converter(
                                         ^^^^^^^^^^
  File "pint/pint/registry_helpers.py", line 128, in _converter
    values.append(kw[param_name])
                  ~~^^^^^^^^^^^^
KeyError: 'x'
>>> f_wrapped(1)
<Quantity(1, 'dimensionless')>
>>> f_wrapped(1, 2)
<Quantity(3, 'dimensionless')>
>>> f_wrapped(ureg.Quantity(1, 'm'))
<Quantity(1, 'meter')>
>>> f_wrapped(ureg.Quantity(1, 'm'), ureg.Quantity(2, 'm'))
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "pint/pint/registry_helpers.py", line 293, in wrapper
    result = func(*new_values, **new_kw)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<stdin>", line 2, in f
  File "pint/pint/facets/plain/quantity.py", line 874, in __add__
    return self._add_sub(other, operator.add)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "pint/pint/facets/plain/quantity.py", line 101, in wrapped
    return f(self, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^
  File "pint/pint/facets/plain/quantity.py", line 750, in _add_sub
    raise DimensionalityError(self._units, "dimensionless")
pint.errors.DimensionalityError: Cannot convert from 'meter' to 'dimensionless'

I have python 3.12.3, pint 0.25rc2.dev28+g9325ea272 (master branch).