If used at the beginning of a sequence, indicates that this step must match
the first interaction of included sessions and users within the select date
range. First expressly means 'first interaction' within the date range.
Usage
First(object, ...)
Arguments
object
An expression that should be at the start of a sequence
expression.
...
Any other expressions that should immediately follow the first
expression.
Value
A gaSegmentSequenceStep object, with the immediate flag set.