code: function remove_null_undefined(object) {
    Object.keys(object).forEach(key => {
      if (object[key] === null || typeof object[key] === "undefined") {
        delete object[key]
      }
    })
  
    return object
  }
docs: Remove any null or undefined values from
  an object and return it.
  @param  {Object} object to remove empties from.
  @return {Object} object without empties.