import import PySimpleGUI as sg
from PIL import Image
from io import BytesIO
    
def disp_image(val: str) -> Union[None, str]:
    """Arg: url of image, Returns .png image for use in PySimpleGUI"""
    try:
        image = Image.open(requests.get(val, stream=True).raw)
        image.thumbnail((300, 300)) # resize as required
        bio = io.BytesIO()
        image.save(bio, format='PNG')
        return bio.getvalue()
    
    except requests.exceptions.RequestException as e:  
    	return f"Error {e}"

    """Example of use"""

    layout = [[sg.Image(data=disp_image(vals.image))]]