Asynchronous code is an approach to writing code that allows multiple tasks to be performed simultaneously within a single process. This is achieved through the use of asynchronous functions and coroutines. Unlike synchronous code, which executes each task sequentially, asynchronous code can run multiple tasks “in parallel” and organize their execution using iterations and callback calls.

To perform the above operation we can also make use of python get method, which returns None if the input key is not part of given dictionary.
This will save you from run time error (KeyError) if the key is not found and also you don't need to do extra coding to deal with unidentified keys.