Adds attribute
Adds body element
Adds element
Adds element with body
Adds text
Clears element
Generates XML
Generates XML with header
Gets attributes
Gets body
Gets child elements
Gets child nodes
Gets element name
Gets named elements
Gets named elements case-insensitive
Gets text content
Checks for attribute
Checks element name
Parses XML string
Sets body
Sets element name
Interface for XML element operations.