Received message larger than max #10

Thank you for this fantastic library. It works great when my returned prediction is small, but I have a model that returns significantly larger outputs. When I try to return them I get:

<_Rendezvous of RPC that terminated with:
status = StatusCode.RESOURCE_EXHAUSTED
details = "Received message larger than max (52383837 vs. 4194304)"
debug_error_string = "{"created":"@1539882985.938759395","description":"Error received from peer","file":"src/core/lib/surface/call.cc","file_line":1099,"grpc_message":"Received message larger than max (52383837 vs. 4194304)","grpc_status":8}"

Looking around this is a common error message seemingly related to the default size set in grpc. I tried naively just bumping the grpc version to 1.15.0 (latest) but that didn't have an effect. I also tried overriding the grpc function as suggested here but still no dice: grpc/grpc#13497 (comment)

You've thought more about this GRPC stuff than I have so figured it would be worth seeing if you'd run into this or how you had resolved it if so. Thanks!