code: function checkForDuplicates (params) {
    for (var i = 0; i < params.length - 1; i++) {
      var outer = params[i];
      for (var j = i + 1; j < params.length; j++) {
        var inner = params[j];
        if (outer.name === inner.name && outer.in === inner.in) {
          throw ono.syntax('Validation failed. Found multiple %s parameters named "%s"', outer.in, outer.name);
        }
      }
    }
  }
docs: Checks the given parameter list for duplicates, and throws an error if found.
  
  @param   {object[]}  params  - An array of Parameter objects