Improving upon discord MassDM bot - discord

Question

import discord
from discord.ext import commands
import platform
import random
import time
bot = commands.Bot(command_prefix='+', case_insensitive=True)
#bot.event
async def on_ready():
print(f'Logged in as {bot.user.name}(ID: +{bot.user.id}) |'
f'Connected to {str(len(bot.guilds))} servers |'
f'Connected to {str(len(set(bot.get_all_members())))} users')
print('--------')
print('CREATED AND HOSTED BY Fataldagod | Fixed Version')
#bot.event
async def on_command_error(ctx, error):
# Ignore these errors:
ignored = (
commands.CommandNotFound, commands.UserInputError, commands.BotMissingPermissions,
commands.MissingPermissions, discord.errors.Forbidden, commands.CommandInvokeError,
commands.MissingRequiredArgument)
if isinstance(error, ignored):
return
#bot.command(pass_context=True)
#commands.has_permissions(kick_members=True)
async def userinfo(ctx, user: discord.Member):
try:
embed = discord.Embed(title="{}'s info".format(user.name),
description="Here's what I could find.",
color=discord.Colour.dark_red())
embed.add_field(name="Name", value=user.name, inline=True)
embed.add_field(name="ID", value=user.id, inline=True)
embed.add_field(name="Status", value=user.status, inline=True)
embed.add_field(name="Highest role", value=user.top_role)
embed.add_field(name="Joined", value=user.joined_at)
embed.set_thumbnail(url=user.avatar_url)
await ctx.send(embed=embed)
except:
await ctx.send("Missing Requrired Args")
#commands.has_permissions(administrator=True)
#bot.command(pass_context=True)
async def send(ctx, *, content: str):
for member in ctx.guild.members:
c = await member.create_dm()
try:
await c.send(content)
await ctx.send("MassDM message sent to: {} ".format(member))
except Exception:
await ctx.send("MassDM message blocked by: {} ".format(member))
Was wondering what I can change to make it so the bot DMs specific roles rather than the entire server?
For example instead of me typing +send (message) I'd like to type +send #role1 #role2 role3 #role4 (message) or something along these lines.
Any help is much appreciated.