typecript check fails on grpc/index.d.ts::setOptions

[CapOM]

grpc 1.22.0

node_modules/grpc/index.d.ts:582:5 - error TS7010: 'setOptions', which lacks return-type annotation, implicitly has an 'any' return type.

582 setOptions(options: MetadataOptions);
~~~~~~~~~~

[cjihrig]

Duplicate of #950 and will likely be fixed in #949.

[CapOM]

Great, thx!