Gets the list of values from this.
The list and its contents are owned by this, and must not be freed.
For example, for the <code>TYPE</code> parameter of the vCard attribute:
TEL;TYPE=WORK,VOICE:(111) 555-1212
this would return the list <code>WORK</code>, <code>VOICE</code>.
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A list of string elements representing the parameter's values. |