xml element inside text node

[snippsat]

Could that be possible to generate the xml I put as example? Could it insert a bold node inside an action element's text ?

Like this,test it out with examples given and Doc.

import lxml.etree
import lxml.builder

E = lxml.builder.ElementMaker()
ROOT = E.root
ACTION = E.action
BOLD = E.bold
the_doc = ROOT(
        ACTION('The guy enters the room and', BOLD('Slam'), 'shuts the door.'),     
    )
print(lxml.etree.tostring(the_doc, encoding=str, pretty_print=True))

Output:
<root>
  <action>The guy enters the room and<bold>Slam</bold>shuts the door.</action>
</root>