Additional JMESPath Functions
The JMESPath specification defines some built-in core functions but also allows implementations to support additional functions. The implementation used by Studio supports the following additional functions:
concat(string, string[, ...])
lower_case(string)
matches(string, regex)
normalize_space(string)
substring_after(string, beforeString)
substring_before(string, afterString)
tokenize(string[, delimiterRegex])
translate(string, fromChars, toChars)
upper_case(string)