pub fn ser_update_rds_db_instance_input(
object: &mut aws_smithy_json::serialize::JsonObjectWriter,
input: &crate::operation::update_rds_db_instance::UpdateRdsDbInstanceInput,
) -> Result<(), aws_smithy_http::operation::error::SerializationError> {
if let Some(var_1) = &input.rds_db_instance_arn {
object.key("RdsDbInstanceArn").string(var_1.as_str());
}
if let Some(var_2) = &input.db_user {
object.key("DbUser").string(var_2.as_str());
}
if let Some(var_3) = &input.db_password {
object.key("DbPassword").string(var_3.as_str());
}
Ok(())
}