code: async def get_reviews(self, **params):
  		
  		if params.get("message"):
  			params = json.loads(params.get("message", "{}"))
  		
  		if not params:
  			return {"error":400, "reason":"Missed required fields"}
  
  		cid = params.get("cid", 0)
  		coinid = params.get("coinid")
  		if not cid and not coinid:
  			return {"error":400, "reason":"Missed cid"}
  
  		reviews = []
  		database = client[coinid]
  		collection = database[settings.REVIEW]
  		async for document in collection.find({"confirmed":None, "cid":int(cid)}):
  			reviews.append({i:document[i] for i in document if i == "confirmed"})
  
  		return reviews
docs: Receives all reviews by cid
  		Accepts:
  		- cid
  		- coinid