Tuple functions

Reference documentation for Expressif functions in the tuple scope.

Name	Overview
arity	Returns the number of positional elements in the input tuple.
bind	Invokes a named callable using the first tuple position as pipeline input and the remaining positions as already-evaluated argument values.
extend	Returns a new tuple with a value appended, expanding tuple values into their positions.
label	Returns a flat record by assigning one positional label to each tuple item and qualifying every field expanded from a record item.
label-conflicts	Returns a flat record whose expanded record fields receive positional labels only when their unqualified names conflict.
pick	Returns a tuple containing selected positions in the requested order.
rotate	Returns a tuple with its positions rotated cyclically, preserving arity and item values, including nulls.
swap	Returns a tuple with two positions exchanged, defaulting to the first and last positions.
tuple	Constructs a new tuple by evaluating zero or more positional expressions from left to right against the same input. Spread arguments expand array values in place.
tuple-at	Returns the tuple field at the specified zero-based position. Returns null when the input is not a tuple or the position is out of range.
tuple-first	Returns the first field of a tuple. Returns null when the input is not a tuple.
tuple-second	Returns the second field of a tuple. Returns null when the input is not a tuple.