Every Step must have a robot parameter that defines the Robot's name and a use parameter that defines which Steps are used as input. The exception to this are Steps that use one of our import robots. For them the use parameter is not mandatory.

We also support a result parameter that controls if the file results of the particular Step should be returned in the Assembly result JSON. If set to true, this Step will occur in the Assembly's result JSON with a temporary URL referencing the result file(s). If you set this to false, this Step will not occur in the Assembly's result JSON, which can be useful if you want to keep the JSON small.