asDpOffset
Asserts that this is a list of numbers of length 2.
If, when the input expression is evaluated, it is not of the asserted type, then this assertion will cause the whole expression to be aborted.
Asserts that this is a list of numbers of length 2.
If, when the input expression is evaluated, it is not of the asserted type, then this assertion will cause the whole expression to be aborted.