def get_extras_require():
extras_require = {}<EOL>if have_environment_marker_support():<EOL><INDENT>extras_require['<STR_LIT>'] = ['<STR_LIT>', '<STR_LIT>']<EOL>extras_require['<STR_LIT>'] = ['<STR_LIT>', '<STR_LIT>']<EOL><DEDENT>return extras_require<EOL>
Add conditional dependencies (when creating wheel distributions).