~/dev/src/github.com/koajs/csrf on master ∴ node example
/Users/stephenmathieson/dev/src/github.com/koajs/csrf/node_modules/koa-session/index.js:45
throw new TypeError('app instance required: `session(opts, app)`');
^
TypeError: app instance required: `session(opts, app)`
at module.exports (/Users/stephenmathieson/dev/src/github.com/koajs/csrf/node_modules/koa-session/index.js:45:11)
at Object.<anonymous> (/Users/stephenmathieson/dev/src/github.com/koajs/csrf/example.js:7:9)
at Module._compile (module.js:435:26)
at Object.Module._extensions..js (module.js:442:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:313:12)
at Function.Module.runMain (module.js:467:10)
at startup (node.js:136:18)
at node.js:963:3