pub fn ser_list_grants_input_input(
object: &mut ::aws_smithy_json::serialize::JsonObjectWriter,
input: &crate::operation::list_grants::ListGrantsInput,
) -> ::std::result::Result<(), ::aws_smithy_types::error::operation::SerializationError> {
if let Some(var_1) = &input.limit {
object.key("Limit").number(
#[allow(clippy::useless_conversion)]
::aws_smithy_types::Number::NegInt((*var_1).into()),
);
}
if let Some(var_2) = &input.marker {
object.key("Marker").string(var_2.as_str());
}
if let Some(var_3) = &input.key_id {
object.key("KeyId").string(var_3.as_str());
}
if let Some(var_4) = &input.grant_id {
object.key("GrantId").string(var_4.as_str());
}
if let Some(var_5) = &input.grantee_principal {
object.key("GranteePrincipal").string(var_5.as_str());
}
Ok(())
}