Node.js - wrap async function in sync function using fibers/futures

I need a wrapper for node-talib to allow it to be called in a blocking fashion where the result is returned without callback handling, i.e: var params = { ... } var ema10 = [login to view URL](params) I have found something in an existing o/s project that appears to do this, but all I get is an error "Can't wait without a fiber" when converting the coffeescript to plain js (using coffee -c): [login to view URL] I need somebody to debug the issue and provide a solution along with example code showing a working version that blocks on a call to talib.X() calls