static VALUE method_serialize(VALUE self, VALUE doc, VALUE check_keys,
VALUE move_id, VALUE max_size) {
VALUE result;
bson_buffer_t buffer = bson_buffer_new();
bson_buffer_set_max_size(buffer, FIX2INT(max_size));
if (buffer == NULL) {
rb_raise(rb_eNoMemError, "failed to allocate memory in buffer.c");
}
write_doc(buffer, doc, check_keys, move_id);
result = rb_str_new(bson_buffer_get_buffer(buffer), bson_buffer_get_position(buffer));
if (bson_buffer_free(buffer) != 0) {
rb_raise(rb_eRuntimeError, "failed to free buffer");
}
return result;
}