95'description' => 'If set to "Yes", this metadata field will be allowed to take different values in different contexts. The default value can also change between contexts.',
96 ),
97'required' => Array(
98'added' => '0.1',
99'type' => 'boolean',
100'default' => FALSE,
101'parameters' => Array('allow_empty' => FALSE),
102'description' => 'If this field is Required, then either the value or any one of the value components must be set for an asset to be approved',