class_docstr: interface to work with individual chat
class_docstr_tok: ["interface","to","work","with","individual","chat"]
code: def __init__(self, memory, chat_id):
      self.memory = memory
      self.chat_id = chat_id
  
      self.cached = False
  
imports: from mindsdb_sql.parser.ast import Identifier, Select, BinaryOperation, Constant, OrderBy
  from mindsdb.interfaces.storage import db
  from .types import ChatBotMessage
label_desc: Use image node_id 1 to create a new ChatMemory object  with example: obj = ChatMemory(memory, chat_id)