def default_headers(self):
_headers = {<EOL>"<STR_LIT>": "<STR_LIT>" % __version__,<EOL>"<STR_LIT>": "<STR_LIT:%s>" % __api_version__,<EOL>}<EOL>if self.api_key:<EOL><INDENT>_headers["<STR_LIT>"] = "<STR_LIT>" % self.api_key<EOL><DEDENT>return _headers<EOL>
It's always OK to include these headers