Make flat json array from nested one via JOLT Hi everyone!I'm trying to flat array and it view as simple case, but I can't reach the goal.Here is simple json input:{ "MainArray": { "mattr1": "some_value1", "mattr2": "some_value2", "Subarray": { "sattr1": 1, "sattr2": 2, "sattr3": 3 } }}Then I would like to convert it to array of arrays [key, value],Here is Desired Output:{ "ResultArray" : [ [ "mattr1", "some_value1" ], [ "mattr2", "some_value2" ], [ "sattr1", 1 ], [ "sattr2", 2 ], [ "sattr1", 3 ] ]} Here is my spec:[ { "operation": "shift", "spec": { "MainArray": { "*": { "$": "ResultArray[#2][0]", "@": "ResultArray[#2][1]" }, "Subarray": { "*": { "$": "ResultArray[#3][#2][0]", "@": "ResultArray[#3][#2][1]" } } } } }] And I don't understand how to fix problem when Subarrays is inside extra array in my result:{ "ResultArray
