Adds an "s" suffix to a duration string if it ends with a number.

RekeyLimitOption is the type for the RekeyLimit option.

AddKeysToAgentOption is an extended boolean option that can be set to yes, no, ask, confirm, confirm with a time interval or a time interval.

BooleanOption is an option that can be set to yes or no.

CanonicalizeHostnameOption is an option that can be set to no, yes or always.

ControlMasterOption is an extended boolean option that can be set to yes, no, ask, auto or autoask.

ControlPersistOption is an extended boolean option that can be set to yes, no or a time interval.

EscapeCharOption is the type for the EscapeChar option.

FingerprintHashOption is an option that can be set to md5 or sha256.

ForwardAgentOption is an extended boolean option that can be set to yes, no or a path to an agent socket or the name of an environment variable prefixed with a dollar sign.

IdentityAgentOption is an option that can be set to a path to an agent socket or the name of an environment variable prefixed with a dollar sign.

IPQoSOption is the type for the IPQoS option.

ObscureKeystrokeTimingOption is an extended boolean option that can be set to yes, no or interval:ms.

PubkeyAuthenticationOption is the type for the PubkeyAuthentication option.

RequestTTYOption is the type for the RequestTTY option.

StrictHostKeyCheckingOption is the type for the StrictHostKeyChecking option.

TunnelOption is the type for the Tunnel option.

UpdateHostKeysOption is the type for the UpdateHostKeys option.

VerifyHostKeyDNSOption is the type for the UpdateHostKeys option.