Outputs

This output always provides a Boolean signal. You will get TRUE if the port connected to the input returns a value. If not, you will get FALSE as result here. Note that, for example, an empty string also represents a value. The signal, therefore, says nothing about the magnitude of values. In addition, Op outputs will generally return a FALSE result because they only serve as a summary for various sub-channels of data, such as matrix, geometry, and Children, and therefore do not represent any value on their own.