[ Version ( since = "0.5.0" ) ]
public string usage { get; set; }
The context in which this address can be used.
For example: gdata_gd_address_usage_general or gdata_gd_address_usage_local .
For more information, see the <ulink type="http" url="http://code.google.com/apis/gdata/docs/2.0/elements.html#gdStructuredPostalAddress">GData specification</ulink>.