Talk:App Object

The documentation page indicates that addChildDevice() has four arguments.

• String namespace
• String typeName
• String deviceNetworkId
• Map properties = [:])

Examples, like averageIlluminance.groovy suggest a fifth argument is required. From that file, see the "null" argument in the following example:

 addChildDevice("hubitat", "Virtual Illuminance Sensor", "AverageLux_${app.id}", null, [label: thisName, name: thisName])