'Return the command sequences needed to define the commands
used to format text in the verbatim environment. ``arg`` is ignored.'

def get_style_defs(self, arg=''):

    cp = self.commandprefix
    styles = []
    for (name, definition) in self.cmd2def.iteritems():
        styles.append(('\\def\\%s@tok@%s{%s}' % (cp, name, definition)))
    return (STYLE_TEMPLATE % {'cp': self.commandprefix, 'styles': '\n'.join(styles)})
