def default_sidebars():
return {<EOL>'<STR_LIT>': ['<STR_LIT>', '<STR_LIT>', '<STR_LIT>'],<EOL>'<STR_LIT:index>': ['<STR_LIT>'],<EOL>'<STR_LIT>': [],<EOL>}<EOL>
Returns a dictionary mapping for the templates used to render the
sidebar on the index page and sub-pages.