Function cast_bound_ref_trusted 

pub unsafe fn cast_bound_ref_trusted<'a, 'py, T: PyTypeCheck>(
    bound_ref: &'a Bound<'py, PyAny>,
) -> PyResult<&'a Bound<'py, T>>

Indirection around Bound::cast_unchecked which performs checks on PyPy, to be used in contexts where CPython has already performed the check.

Safety

bound_ref must be of type T