def item(self):
<EOL>if len(self) == <NUM_LIT:1>:<EOL><INDENT>return self[<NUM_LIT:0>]<EOL><DEDENT>else:<EOL><INDENT>raise ValueError('<STR_LIT>'<EOL>'<STR_LIT>')<EOL><DEDENT>
return the first element of the underlying data as a python
scalar