ABL annotations are always on a separate line from other code. The compiler treats any line that starts with a single "at" symbol ( @ ) as a ABL source-only annotation.
Note: Annotation syntax must begin with a non-numeric.

The ABL Annotation syntax is as follows: @annotation[(attribute = "value"[,attribute = "value"]...)].

annotation: The annotation's name can be any character string that you choose.

attribute: The attribute's name can be any character string that you choose. Attribute/value pairs are optional.

value: The value can be any character string that you choose. Attribute/value pairs are optional.