pub unsafe extern "C" fn sk_X509_deep_copy(
sk: *const stack_st_X509,
copy_func: sk_X509_copy_func,
free_func: sk_X509_free_func,
) -> *mut stack_st_X509pub unsafe extern "C" fn sk_X509_deep_copy(
sk: *const stack_st_X509,
copy_func: sk_X509_copy_func,
free_func: sk_X509_free_func,
) -> *mut stack_st_X509