def example_c = { input -> node { echo "$input" } }
def map = [:]
map['spam'] = example_c.curry('spam')
map['eggs'] = example_c.curry('eggs')
parallel map

[Pipeline] parallel
[Pipeline] [spam] { (Branch: spam)
[Pipeline] [eggs] { (Branch: eggs)
[Pipeline] [spam] node
[spam] Running on java8-jenkins-ec2-slave (i-a541b5be) 
[Pipeline] [eggs] node
[Pipeline] [spam] {
[eggs] Running on java8-jenkins-ec2-slave (i-a541b5be) 
[Pipeline] [spam] echo
[spam] eggs
[Pipeline] }
[Pipeline] [eggs] {
[Pipeline] // node
[Pipeline] }
[Pipeline] [eggs] echo
[eggs] eggs
[Pipeline] }
[Pipeline] // node
[Pipeline] }
[Pipeline] // parallel
[Pipeline] End of Pipeline