Information is presented as objects. An object can be a string, a number, a datablock, a timestamp, an ip-address, an array, a dictionary, or an XML object. See the Data section for more details.
An object can also be a Mailbox handle, a Task Handle, or any other special object defined within a particular environment.
A special type of object is the null-value (null value or "no object" value).
When processing logical (boolean) values, the null-value is used as a false-value, and a string "YES" is used as a true-value.