old_contents: 
  from twitchio.ext import commands
  
  @commands.cog()
  class Words:
  	
  	def __init__(self, bot):
  		self.bot = bot
  	
  	@commands.command()
  	async def audiodefine(self, ctx, word):
  		url = f"http://api.wordnik.com:80/v4/word.json/{word}/audio"
  		params = {"useCanonical": "false", "limit": 1, "api_key": self.bot.WORDNIK_API_KEY}
  		async with self.bot.aiohttp_session.get(url, params = params) as resp:
  			data = await resp.json()
  		if data:
  			await ctx.send(f"{data[0]['word'].capitalize()}: {data[0]['fileUrl']}")
  		else:
  			await ctx.send("Word or audio not found.")
  	
  	@commands.command()
  	async def define(self, ctx, word):
  		url = f"http://api.wordnik.com:80/v4/word.json/{word}/definitions"
  		params = {"limit": 1, "includeRelated": "false", "useCanonical": "false", "includeTags": "false", 
  					"api_key": self.bot.WORDNIK_API_KEY}
  		async with self.bot.aiohttp_session.get(url, params = params) as resp:
  			data = await resp.json()
  		if data:
  			await ctx.send(data[0]["word"].capitalize() + ": " + data[0]["text"])
  		else:
  			await ctx.send("Definition not found.")
  
  
new_contents: 
  from twitchio.ext import commands
  
  @commands.cog()
  class Words:
  	
  	def __init__(self, bot):
  		self.bot = bot
  	
  	@commands.command()
  	async def audiodefine(self, ctx, word):
  		url = f"http://api.wordnik.com:80/v4/word.json/{word}/audio"
  		params = {"useCanonical": "false", "limit": 1, "api_key": self.bot.WORDNIK_API_KEY}
  		async with self.bot.aiohttp_session.get(url, params = params) as resp:
  			data = await resp.json()
  		if data:
  			await ctx.send(f"{data[0]['word'].capitalize()}: {data[0]['fileUrl']}")
  		else:
  			await ctx.send("Word or audio not found.")
  	
  	@commands.command()
  	async def define(self, ctx, word):
  		url = f"http://api.wordnik.com:80/v4/word.json/{word}/definitions"
  		params = {"limit": 1, "includeRelated": "false", "useCanonical": "false", "includeTags": "false", 
  					"api_key": self.bot.WORDNIK_API_KEY}
  		async with self.bot.aiohttp_session.get(url, params = params) as resp:
  			data = await resp.json()
  		if data:
  			await ctx.send(f"{data[0]['word'].capitalize()}: {data[0]['text']}")
  		else:
  			await ctx.send("Definition not found.")
  
  
subject: Use f-string for define command