Per-call overrides for a join. Kept as an options object so new knobs (rejoin policy, headers, etc.) can be added without another positional argument in generated SDK call sites.
Optional
Override the socket's default reply timeout for this join.
Per-call overrides for a join. Kept as an options object so new knobs (rejoin policy, headers, etc.) can be added without another positional argument in generated SDK call sites.