test_daggr_init.py

import os
import io
import modal
import gradio as gr
from PIL import Image
from daggr import FnNode, Graph

def convert_image_to_bytes(image) -> bytes:
    return b"test"

try:
    print("Attempting to create FnNode...")
    converter = FnNode(
        fn=convert_image_to_bytes,
        name="Image Converter",
        inputs={
            "image": gr.Image(label="Upload your photo"),
        },
        outputs={
            "output": gr.Textbox(visible=False),
        },
    )
    print("Success!")
    print(f"Output port: {converter.output}")
except Exception as e:
    import traceback
    traceback.print_exc()