pub unsafe extern "C" fn lgraph_api_transaction_add_vertex_with_value_strings(
txn: *mut lgraph_api_transaction_t,
label_name: *const c_char,
field_names: *const *const c_char,
field_names_size: usize,
field_value_strings: *const *const c_char,
field_value_strings_size: usize,
errptr: *mut *mut c_char,
) -> i64