completer

type CompleteFunc func(string) ([]string, string)

type Completer struct {
	// AddressBookCmd is the command to run for completing email addresses. This
	// command must output one completion on each line with fields separated by a
	// tab character. The first field must be the address, and the second field,
	// if present, the contact name. Only the email address field is required.
	// The name field is optional. Additional fields are ignored.
	AddressBookCmd string
	// contains filtered or unexported fields
}