Drying French Beans

My french beans had definatly come to an end a few weeks ago, so I just left the last few pods on the plant to die off and dry in the weather we've been having lately.

Tonight I had half an hour in the garden before it got dark so I managed to pull all the beans off the plant and empty the pods into a seed tray. These I'll leave in the shed until they're dry and then store them in a kilner jar.

I hope I can use any sort of french bean for drying! Does anyone have any information?