Function PyArray_FromAny

numpy/core/src/multiarray/ctors.c:1501–1524

NUMPY_API * Does not check for NPY_ARRAY_ENSURECOPY and NPY_ARRAY_NOTSWAPPED in flags * Steals a reference to newtype --- which can be NULL */

 * Steals a reference to newtype --- which can be NULL
 */
NPY_NO_EXPORT PyObject *
PyArray_FromAny(PyObject *op, PyArray_Descr *newtype, int min_depth,
                int max_depth, int flags, PyObject *context)
{
    npy_dtype_info dt_info = {NULL, NULL};

    int res = PyArray_ExtractDTypeAndDescriptor(
        newtype, &dt_info.descr, &dt_info.dtype);

    Py_XDECREF(newtype);

    if (res < 0) {
        Py_XDECREF(dt_info.descr);
        Py_XDECREF(dt_info.dtype);
        return NULL;
    }

    PyObject* ret =  PyArray_FromAny_int(op, dt_info.descr, dt_info.dtype,
                                         min_depth, max_depth, flags, context);

    Py_XDECREF(dt_info.descr);
    Py_XDECREF(dt_info.dtype);
    return ret;
}

/*
 * Internal version of PyArray_FromAny that accepts a dtypemeta. Borrows