Your code seems to have couple of problems.
First is the indention issue and second is you need to escape '
using
.
Try the following:
async def hug(ctx, member):
username = ctx.message.author.display_name
embed = discord.Embed(title = (f'{username} has sent a hug to {member}!'),
description = ('comforting isn't it <3'), color = 0x83B5E3)
image = ('https://tenor.com/N4Sj.gif')
embed.set_image(url=image)
await ctx.channel.send(embed=embed)
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