Gets the value of a single-valued VCardAttribute, this , decoding it if necessary according to the encoding given in the vCard’s <code>ENCODING</code> attribute.
This will print a warning if called on an VCardAttribute which is not single-valued ( i.e. for which is_single_valued returns false). Use get_values_decoded in such cases instead.
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A newly allocated StringBuilder representing the value, or null if the attribute has no value. |