The update() method can merge as many dictionaries together as you want.
Each time you want to add another dictionary to the existing dictionary,
you specify that dictionary as a parameter to the update function.
Dictionaries with Overlapping Keys
When we have overlapping keys (which gives us overlapping key-value pairs)
and we reference a key in the dictionary,
it will return the value of the key of the last merged dictionary.
Let's see below how this works: