pub fn ser_left_expression(
object_2: &mut ::aws_smithy_json::serialize::JsonObjectWriter,
input: &crate::types::LeftExpression,
) -> ::std::result::Result<(), ::aws_smithy_types::error::operation::SerializationError> {
match input {
crate::types::LeftExpression::MetadataKey(inner) => {
object_2.key("metadataKey").string(inner.as_str());
}
crate::types::LeftExpression::Unknown => {
return Err(::aws_smithy_types::error::operation::SerializationError::unknown_variant(
"LeftExpression",
))
}
}
Ok(())
}