from panda3d.core import TiXmlDeclaration
In correct XML the declaration is the first entry in the file.
<?xml version="1.0" standalone="yes"?>
TinyXml will happily read or write files without a declaration, however. There are 3 possible attributes to the declaration: version, encoding, and standalone.
Note: In this version of the code, the attributes are handled as special cases, not generic attributes, simply because there can only be at most 3 and they are always the same.
/// Construct an empty declaration.