`val iter : 'a t ‑> envelope:(('a t, 'a) Fieldslib.Field.t ‑> 'a t ‑> 'a ‑> unit) ‑> next_hop_choices:(('a t, Async_smtp_types__.Socket_address.t list) Fieldslib.Field.t ‑> 'a t ‑> Async_smtp_types__.Socket_address.t list ‑> unit) ‑> retry_intervals:(('a t, Async_smtp_types__.Retry_interval.t list) Fieldslib.Field.t ‑> 'a t ‑> Async_smtp_types__.Retry_interval.t list ‑> unit) ‑> unit`
`val fold : 'a t ‑> init:'acc__0 ‑> envelope:('acc__0 ‑> ('a t, 'a) Fieldslib.Field.t ‑> 'a t ‑> 'a ‑> 'acc__1) ‑> next_hop_choices:('acc__1 ‑> ('a t, Async_smtp_types__.Socket_address.t list) Fieldslib.Field.t ‑> 'a t ‑> Async_smtp_types__.Socket_address.t list ‑> 'acc__2) ‑> retry_intervals:('acc__2 ‑> ('a t, Async_smtp_types__.Retry_interval.t list) Fieldslib.Field.t ‑> 'a t ‑> Async_smtp_types__.Retry_interval.t list ‑> 'acc__3) ‑> 'acc__3`
`val for_all : 'a t ‑> envelope:(('a t, 'a) Fieldslib.Field.t ‑> 'a t ‑> 'a ‑> bool) ‑> next_hop_choices:(('a t, Async_smtp_types__.Socket_address.t list) Fieldslib.Field.t ‑> 'a t ‑> Async_smtp_types__.Socket_address.t list ‑> bool) ‑> retry_intervals:(('a t, Async_smtp_types__.Retry_interval.t list) Fieldslib.Field.t ‑> 'a t ‑> Async_smtp_types__.Retry_interval.t list ‑> bool) ‑> bool`
`val exists : 'a t ‑> envelope:(('a t, 'a) Fieldslib.Field.t ‑> 'a t ‑> 'a ‑> bool) ‑> next_hop_choices:(('a t, Async_smtp_types__.Socket_address.t list) Fieldslib.Field.t ‑> 'a t ‑> Async_smtp_types__.Socket_address.t list ‑> bool) ‑> retry_intervals:(('a t, Async_smtp_types__.Retry_interval.t list) Fieldslib.Field.t ‑> 'a t ‑> Async_smtp_types__.Retry_interval.t list ‑> bool) ‑> bool`
`val to_list : 'a t ‑> envelope:(('a t, 'a) Fieldslib.Field.t ‑> 'a t ‑> 'a ‑> 'elem__) ‑> next_hop_choices:(('a t, Async_smtp_types__.Socket_address.t list) Fieldslib.Field.t ‑> 'a t ‑> Async_smtp_types__.Socket_address.t list ‑> 'elem__) ‑> retry_intervals:(('a t, Async_smtp_types__.Retry_interval.t list) Fieldslib.Field.t ‑> 'a t ‑> Async_smtp_types__.Retry_interval.t list ‑> 'elem__) ‑> 'elem__ list`
`val map : 'a t ‑> envelope:(('a t, 'a) Fieldslib.Field.t ‑> 'a t ‑> 'a ‑> 'a) ‑> next_hop_choices:(('a t, Async_smtp_types__.Socket_address.t list) Fieldslib.Field.t ‑> 'a t ‑> Async_smtp_types__.Socket_address.t list ‑> Async_smtp_types__.Socket_address.t list) ‑> retry_intervals:(('a t, Async_smtp_types__.Retry_interval.t list) Fieldslib.Field.t ‑> 'a t ‑> Async_smtp_types__.Retry_interval.t list ‑> Async_smtp_types__.Retry_interval.t list) ‑> 'a t`
`val set_all_mutable_fields : 'a t ‑> unit`