I have this grammar definition in the python parser

file_input: {{}}
������ | file_input <NEWLINE> {{}}
������ | file_input stmt 'statement' {{}}
������ ;

So I would expect
a) the class to be name Pyfile_inputNode , instead is named PyFileInputNode, why ?
b) I would expect a "statement" instance variable in that class and instead I get "statements" instance variable, why ?