pub fn ser_update_billing_group_input_input(
object: &mut ::aws_smithy_json::serialize::JsonObjectWriter,
input: &crate::operation::update_billing_group::UpdateBillingGroupInput,
) -> ::std::result::Result<(), ::aws_smithy_types::error::operation::SerializationError> {
if let Some(var_1) = &input.billing_group_properties {
#[allow(unused_mut)]
let mut object_2 = object.key("billingGroupProperties").start_object();
crate::protocol_serde::shape_billing_group_properties::ser_billing_group_properties(&mut object_2, var_1)?;
object_2.finish();
}
if let Some(var_3) = &input.expected_version {
object.key("expectedVersion").number(
#[allow(clippy::useless_conversion)]
::aws_smithy_types::Number::NegInt((*var_3).into()),
);
}
Ok(())
}