# Functions
CheckRoundRobinRPCs verifies that EmptyCall RPCs on the given ClientConn, connected to a server exposing the test.grpc_testing.TestService, are roundrobined across the given backend addresses.
CheckWeightedRoundRobinRPCs verifies that EmptyCall RPCs on the given ClientConn, connected to a server exposing the test.grpc_testing.TestService, are weighted roundrobined (with randomness) across the given backend addresses.