feat: FileUpload in Modal

examples/modal_dialogs.py

@@ -36,11 +36,18 @@ def __init__(self, *args, **kwargs) -> None:
                 description="If it is not listed, skip this question.",
                 required=False,
             ),
+            discord.ui.FileUpload(
+                label="What's your favorite picture?",
+                max_values=1,
+                description="You may only pick one! Chose wisely!",
+                required=False,
+            ),
             *args,
             **kwargs,
         )
 
     async def callback(self, interaction: discord.Interaction):
+        await interaction.response.defer()
         embed = discord.Embed(
             title="Your Modal Results",
             fields=[
@@ -50,10 +57,19 @@ async def callback(self, interaction: discord.Interaction):
                 discord.EmbedField(
                     name="Second Input", value=self.children[1].value, inline=False
                 ),
+                discord.EmbedField(
+                    name="Favorite Color", value=self.children[2].value, inline=False
+                ),
             ],
             color=discord.Color.random(),
         )
-        await interaction.response.send_message(embeds=[embed])
+        attachment = self.children[3].values[0] if self.children[3].values else None
+        if attachment:
+            embed.set_image(url=f"attachments://{attachment.filename}")
+        await interaction.response.send_message(
+            embeds=[embed],
+            files=[await attachment.to_file()] if attachment else [],
+        )
 
 
 @bot.slash_command(name="modaltest")