fast-json-patch: _get patch error

var fastJsonPatch = require("fast-json-patch@1.2.2") var assert = require("assert") var doc = {} // apply var patches = [{"op":"_get","path":""}] fastJsonPatch.apply(doc, patches) assert(patches[0].value == doc); // applyOperation var operation = {"op":"_get","path":""} fastJsonPatch.applyOperation(doc, operation) assert(operation.value == doc); // applyPatch var operation = {"op":"_get","path":""} fastJsonPatch.applyPatch(doc, [operation]) assert(operation.value == doc); // getValueByPointer var operation = {"op":"_get","path":""} const value = fastJsonPatch.getValueByPointer(doc, '') assert(value == doc); a = "All assertions passed :D"