pyo3_ffi

Function PyBuffer_FillInfo

Source 
pub unsafe extern "C" fn PyBuffer_FillInfo(
    view: *mut Py_buffer,
    o: *mut PyObject,
    buf: *mut c_void,
    len: Py_ssize_t,
    readonly: c_int,
    flags: c_int,
) -> c_int
Available on non-Py_3_11 and non-Py_LIMITED_API only.