GRPC_ARG_CLIENT_IDLE_TIMEOUT_MS

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
extern (C)
static if(!is(typeof(GRPC_ARG_CLIENT_IDLE_TIMEOUT_MS)))
enum GRPC_ARG_CLIENT_IDLE_TIMEOUT_MS = "grpc.client_idle_timeout_ms";

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