def get_user_agent():
version = pkg_resources.require("<STR_LIT>")[<NUM_LIT:0>].version<EOL>user_agent = "<STR_LIT>".format(<EOL>platform.python_version(),<EOL>platform.platform(),<EOL>requests.__version__,<EOL>version)<EOL>return user_agent<EOL>
User-Agent Header. Sends library identification to Azure endpoint.