Make sure itertools is only imported when used

crates/sdk-schemas/src/main.rs

@@ -1,7 +1,6 @@
 use std::{fs::File, io::Write};
 
 use anyhow::Result;
-use itertools::Itertools;
 use schemars::{schema::RootSchema, schema_for, JsonSchema};
 
 /// Creates a json schema file for any type passed in using Schemars. The filename and path of the generated
@@ -45,6 +44,8 @@ use schemars::{schema::RootSchema, schema_for, JsonSchema};
 /// will generate `Response.json` at `{{pwd}}/path/to/folder/Response.json`
 macro_rules! write_schema_for {
     ($type:ty) => {
+        use itertools::Itertools;
+
         let schema = schema_for!($type);
 
         let type_name = stringify!($type);