*
     * @param subKey the key name directly under match to replace. For example "_type"
     */
    public void removeMatch(String subKey) {
        transformations.add(new RemoveMatch(subKey));
    }

    /**
     * Removes the key/value of a match assertion for the given REST tests for the matching subkey.
     * For example "match":{"_type": "foo"} to "match":{}

              task.replaceValueInMatch("_type", "_doc")
              task.replaceValueInMatch("_source.values", ["z", "x", "y"], "one")
              task.removeMatch("_source.blah")
              task.removeMatch("_source.junk", "two")
              task.addMatch("_source.added", [name: 'jake', likes: 'cheese'], "one")
              task.addWarning("one", "warning1", "warning2")