Execute a module method
Run behaviour that has been exposed by a module. The associated method will be executed and the response returned. If this includes asynchonous or long running behaviour, the result will be awaiting up until a timeout value.
ID of the system to execute within.a
Class name of the module. i.e. `Display`, `Bookings` etc
(default 1) Module index in the system.
The name of the method that should be executed.
Argument to be sent to the method.
All response values are wrapped in an array. This ensures that method which return primatives (strings, numbers, booleans or null) still provide a valid JSON response.