AWS(Amazon Web Services) launched a feature to their existing stack as “Layers” which in fact allows developers to create a custom runtime environment or upload their standard libraries as Layers and then use it as a reference during code execution without being worried about the size of their deployment package which in-fact was making AWS Lambda function to run slower with the larger dependencies of external libraries.
Following is the Deep Drive Session did by AWS experts themselves which would enable us to understand AWS Lambda at length.