Base class for format reading/writing a variety of formats. Subclasses of OpenLayers.Format are expected to have read and write methods.
Instances of this class are not useful. See one of the subclasses.
An instance of OpenLayers.Format
read: function(data)
Read data from a string, and return an object whose type depends on the subclass.
Depends on the subclass
write: function(object)
Accept an object, and return a string.
{String} A string representation of the object.