Update prompt_expander.py

prompt_expander.py

@@ -41,6 +41,7 @@ class GeminiPromptExpander(ModularPipelineBlocks):
                 type_hint=str,
                 required=True,
                 description="Prompt to use",
+                metadata={"mellon":"textbox"}
             )
         ]
     
@@ -55,6 +56,7 @@ class GeminiPromptExpander(ModularPipelineBlocks):
                 "prompt",
                 type_hint=str,
                 description="Expanded prompt by the LLM",
+                metadata={"mellon":"text"}
             ),
             OutputParam(
                 "old_prompt",