fix gen_schema due to arr handling (PolusAI#307)

Co-authored-by: Vasu Jaganath <[email protected]>

Author: vjaganat90

src/sophios/compiler.py

@@ -896,7 +896,7 @@ def populate_scalar_val(in_dict: dict) -> Any:
                 val_list.append(populate_scalar_val(
                     {'type': in_dict['type']['items'], 'value': val, 'format': in_dict.get('format')}))
             new_keyval = {key: val_list}
-        elif isinstance(in_dict['type'], list) and 'array' == in_dict['type'][1]['type']:
+        elif isinstance(in_dict['type'], list) and isinstance(in_dict['type'][1], dict) and 'array' == in_dict['type'][1]['type']:
             val_list = []
             for val in in_dict['value']:
                 val_list.append(populate_scalar_val(