pub fn ser_routing_criteria_input_step(
object: &mut ::aws_smithy_json::serialize::JsonObjectWriter,
input: &crate::types::RoutingCriteriaInputStep,
) -> ::std::result::Result<(), ::aws_smithy_types::error::operation::SerializationError> {
if let Some(var_1) = &input.expiry {
#[allow(unused_mut)]
let mut object_2 = object.key("Expiry").start_object();
crate::protocol_serde::shape_routing_criteria_input_step_expiry::ser_routing_criteria_input_step_expiry(&mut object_2, var_1)?;
object_2.finish();
}
if let Some(var_3) = &input.expression {
#[allow(unused_mut)]
let mut object_4 = object.key("Expression").start_object();
crate::protocol_serde::shape_expression::ser_expression(&mut object_4, var_3)?;
object_4.finish();
}
Ok(())
}