Must returns Settings if err is nil and panics otherwise.

New creates trm.Settings.

WithCancelable sets up possibility to cancel child goroutines when parent trm.Transaction was canceled.

WithCtxKey sets up trm.CtxKey for the trm.Settings.

WithPropagation sets up a trm.Propagation for the trm.Settings.

WithTimeout sets up a timeout for the trm.trm.

nolint:gochecknoglobals.

Settings is an implementation of trm.Settings.

Opt is type to set Settings' properties.