question- when is the 'type' argument required?

[danieleades]

looking through the README, the 'type' of the diagram is configured on the directive.
The diagrams also state that when using a diagram file, the 'type' can be inferred from the file extension
The readme contains a plantuml example- in that example the 'type' is not specified. Does this mean the diagram 'type' can also be inferred when using the inline syntax?

[danieleades]

i see in the code, that if the file extension is not detected and the 'type' argument is not set, then a warning is fired.
I take it then that the example in your readme would not run as is?