pub fn ser_list_policy_versions_input_input_input(
input: &crate::operation::list_policy_versions::ListPolicyVersionsInput,
) -> ::std::result::Result<::aws_smithy_types::body::SdkBody, ::aws_smithy_types::error::operation::SerializationError> {
let mut out = String::new();
#[allow(unused_mut)]
let mut writer = ::aws_smithy_query::QueryWriter::new(&mut out, "ListPolicyVersions", "2010-05-08");
#[allow(unused_mut)]
let mut scope_1 = writer.prefix("PolicyArn");
if let Some(var_2) = &input.policy_arn {
scope_1.string(var_2);
}
#[allow(unused_mut)]
let mut scope_3 = writer.prefix("Marker");
if let Some(var_4) = &input.marker {
scope_3.string(var_4);
}
#[allow(unused_mut)]
let mut scope_5 = writer.prefix("MaxItems");
if let Some(var_6) = &input.max_items {
scope_5.number(
#[allow(clippy::useless_conversion)]
::aws_smithy_types::Number::NegInt((*var_6).into()),
);
}
writer.finish();
Ok(::aws_smithy_types::body::SdkBody::from(out))
}