Implement custom function for unrolling list of Name/Value pair objects about jmespath HOT 1 CLOSED

from jmespath import functions

class JmesPathSplunkExtraFunctions(functions.Functions):

    @functions.signature({'types': ['array']}, {'types':['string']}, {'types':['string']})
    def _func_unroll(self, objlist, key, value):
        d = dict()
        for item in objlist:
            try:
                # Todo sanitize key names
                k = None
                v = None
                k = item[key]
                v = item[value]
                d[k] = v
            except Exception as e:
                return "Couldn't find key={} ({}={})value={} in {}".format(key, value, k, v, item) # "IT FAILED:  %s" % (str(e),)
        return d