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13.12.5 AttributesImpl Objects

`AttributesImpl` objects implement a portion of the mapping protocol, and the methods `copy()`, `get()`, `has_key()`, `items()`, `keys()`, and `values()`. The following methods are also provided:

`getLength`()
  Return the number of attributes.

`getNames`()
  Return the names of the attributes.

`getType`(name)
  Returns the type of the attribute name, which is normally `'CDATA'`.

`getValue`(name)
  Return the value of attribute name.