 So, till now in this course, we have learned what is JSON and why JSON appear and then we had learned why we should use JSON and then we had learned that how it differs from XML and its advantages over XML. So now enough of this theory, it's time to see some JSON in action and we are going to actually look at and write some code, we will be going to write a sample JSON document that will represent a patient and he's or her this is history and we will see the structure of the JSON formatted document that will help you to understand the syntax and how to beautify it using one utility provided by PyTScout. So let's jump into it.