text: Subsequent events will invoke the handler again, without the initialization delay. During this cycle, 
  
  the function stays in memory, so clients and variables declared outside of the handler method can 
  
  be reused. 
  
  After a period of time, Lambda will eventually tear down the runtime. This can happen for a variety 
  
  of reasons; some examples: scaling down to conserve resources, updating the function, updating 
  
  the runtime. 
  
  The function**handler**is the essential component of your function code. As noted previously, the 
  handler is the entry point, but it may not be the only function in your code. In fact, a best practice 
  
  is keeping the handler sparse and doing the actual processing in other functions in your code. 
  
  Here are some example**handlers**: 
  
  Python 