Summary
This markup element can be used to mark a text as a summary of a code element. Within the summary you are allowed to use additional markups. In contrast to the description, however, the summary only exists once per program organization unit. All other places where you use the markup are not output in the documentation. Therefore, write the summary as a coherent text block.
Example
Normal form:
//!<summary> This is the summary of the description in normal form. </summary>
Abbreviated form:
//!@summary This is the summary of the description in the abbreviated form.