The DOMImplementation interface provides a way for applications to determine the availability of particular features in the DOM they are using. DOM Level 2 added the ability to create new Document and DocumentType objects using the DOMImplementation as well.
| feature, version) |
| namespaceUri, qualifiedName, doctype) |
None.
In the Python DOM API, the first two arguments can also be None
in order to indicate that no Element child is to be created.
| qualifiedName, publicId, systemId) |
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