pub fn ser_apply_pending_maintenance_action_input_input(
object: &mut ::aws_smithy_json::serialize::JsonObjectWriter,
input: &crate::operation::apply_pending_maintenance_action::ApplyPendingMaintenanceActionInput,
) -> ::std::result::Result<(), ::aws_smithy_types::error::operation::SerializationError> {
if let Some(var_1) = &input.apply_action {
object.key("applyAction").string(var_1.as_str());
}
if let Some(var_2) = &input.apply_on {
object.key("applyOn").string(var_2.as_str());
}
if let Some(var_3) = &input.opt_in_type {
object.key("optInType").string(var_3.as_str());
}
if let Some(var_4) = &input.resource_arn {
object.key("resourceArn").string(var_4.as_str());
}
Ok(())
}