flags- Type: space-separated list of the values below
- A set of flags used for miscellaneous purposes. Two flags are defined, which may be the value of this attribute.
dont-test-empty: For template generated content, the builder will not check that a container is empty.dont-build-content: This flag may be used on a tree to indicate that content elements should not be generated. This results in a performance enhancement, but you will not be able to use the DOM functions to retrieve the tree rows.