adjust option types

TODO

@@ -2,5 +2,7 @@ Todo:
   Gradio:
     ☐ Upload button
     ☐ Color group
+    ☐ Module colors
+    ☐ Cluster plot
   CLI:
     ☐ Buffer context

myapp/cli.py

@@ -19,7 +19,7 @@ def cli():
 
 @cli.command()
 @click.option("--prompt", required=True)
-@click.option("--target", type=click.Path(dir_okay=False), required=True)
+@click.option("--target", type=click.File("wb"), required=True)
 @click.option("--model", default="black-forest-labs/FLUX.1-schnell")
 @click.option("--width", default=400)
 @click.option("--height", default=400)
@@ -36,7 +36,7 @@ def generate_image(prompt, target, model, width, height):
 
 @cli.command()
 @click.option("--image", type=ImageParamType(), required=True)
-@click.option("--target", type=click.Path(dir_okay=False), required=True)
+@click.option("--target", type=click.File("wb"), required=True)
 @click.option("--n-colors", default=4)
 @click.option("--shade", "shades", default=(0.0,), multiple=True)
 def generate_palette(image, target, n_colors, shades):
@@ -47,14 +47,14 @@ def generate_palette(image, target, n_colors, shades):
 
 @cli.command()
 @click.option("--text", required=True)
-@click.option("--background", type=ImageParamType(), required=True)
-@click.option("--target", type=click.Path(dir_okay=False), required=True)
+@click.option("--background", type=click.File("rb"), required=True)
+@click.option("--target", type=click.File("wb"), required=True)
 @click.option("--scale", type=click.IntRange(min=3, max=15), default=9)
 @click.option("--error", type=click.Choice(list(ERROR_MAPPING)))
 def generate_qr_code(text, background, target, scale, error):
     write_artistic(
         segno.make(text, error=error),
-        background.filename,
+        background,
         target,
         scale=scale,
     )