pub unsafe extern "C" fn __flint_get_memory_functions(
alloc_func: *mut Option<unsafe extern "C" fn(arg1: usize) -> *mut c_void>,
calloc_func: *mut Option<unsafe extern "C" fn(arg1: usize, arg2: usize) -> *mut c_void>,
realloc_func: *mut Option<unsafe extern "C" fn(arg1: *mut c_void, arg2: usize) -> *mut c_void>,
free_func: *mut Option<unsafe extern "C" fn(arg1: *mut c_void)>,
)