TypeError: sts.assumeRole is not a function
at d:\H5\vh5\server.js:64:7
at Layer.handle [as handle_request] (d:\H5\vh5\node_modules\express\lib\router\layer.js:95:5)
at next (d:\H5\vh5\node_modules\express\lib\router\route.js:131:13)
at Route.dispatch (d:\H5\vh5\node_modules\express\lib\router\route.js:112:3)
at Layer.handle [as handle_request] (d:\H5\vh5\node_modules\express\lib\router\layer.js:95:5)
at d:\H5\vh5\node_modules\express\lib\router\index.js:277:22
at Function.process_params (d:\H5\vh5\node_modules\express\lib\router\index.js:330:12)
at next (d:\H5\vh5\node_modules\express\lib\router\index.js:271:10)
at SendStream.error (d:\H5\vh5\node_modules\serve-static\index.js:120:7)
at SendStream.emit (events.js:189:13)
TypeError: sts.assumeRole is not a function at d:\H5\vh5\server.js:64:7 at Layer.handle [as handle_request] (d:\H5\vh5\node_modules\express\lib\router\layer.js:95:5) at next (d:\H5\vh5\node_modules\express\lib\router\route.js:131:13) at Route.dispatch (d:\H5\vh5\node_modules\express\lib\router\route.js:112:3) at Layer.handle [as handle_request] (d:\H5\vh5\node_modules\express\lib\router\layer.js:95:5) at d:\H5\vh5\node_modules\express\lib\router\index.js:277:22 at Function.process_params (d:\H5\vh5\node_modules\express\lib\router\index.js:330:12) at next (d:\H5\vh5\node_modules\express\lib\router\index.js:271:10) at SendStream.error (d:\H5\vh5\node_modules\serve-static\index.js:120:7) at SendStream.emit (events.js:189:13)