Returns the value of the property with a given key from the comment identified by the key or by the id. The user who retrieves the property is required to have permissions to read the comment.
The comment from which the property will be returned.
The key of the property to return.
Optional
Returns the value of the property with a given key from the comment identified by the key or by the id. The user who retrieves the property is required to have permissions to read the comment.