def string_found(self, ypos, xpos, string):
found = self.string_get(ypos, xpos, len(string))<EOL>log.debug('<STR_LIT>'.format(found))<EOL>return found == string<EOL>
Return True if `string` is found at screen co-ordinates
`ypos`/`xpos`, False otherwise.

Co-ordinates are 1 based, as listed in the status area of the
terminal.