Groovy REPL: prnt command parameter completion does not work well

[mattirn]

Groovy REPL prnt command tab completion of object parameter does not work. For example typing the commands shown below do not complete anything

groovy-repl> data=slurp demo/target/data.json
groovy-repl> prnt ${data}.<tab>

while the completion works correctly for Groovy statements

groovy-repl> println data.<tab>
Identifiers
response           responseHeader
Methods
add                equals             keySet             replace
chopMap            forEach            len                replaceAll
clear              get                merge              size
compute            getClass           notify             toString
computeIfAbsent    getOrDefault       notifyAll          values
computeIfPresent   hashCode           put                wait
containsKey        hydrated           putAll
containsValue      isEmpty            putIfAbsent
entrySet           items              remove

In prnt command tab-completion should display object identifiers.