messages

type ContentData struct {
	TextContent string
	HtmlContent string
	AmpContent  string
}

type RecipientData struct {
	Email         string                 `json:"email"`
	Name          string                 `json:"name,omitempty"`
	Substitutions map[string]interface{} `json:"substitutions,omitempty"`
}

type SendFlags struct {
	// Basic email parameters
	FromEmail      string
	ToEmails       []string
	RecipientsFile string
	Subject        string

	// Content options
	TextContent string
	HtmlContent string
	AmpContent  string

	// Template files
	TextTemplate string
	HtmlTemplate string
	AmpTemplate  string

	// Substitutions
	GlobalSubstitutionsFile string

	// Advanced options
	CustomHeaders  []string
	ScheduleTime   string
	Sandbox        bool
	SandboxResult  string
	Tags           []string
	IdempotencyKey string
	TrackOpens     bool
	TrackClicks    bool
	Attachments    []string

	// Batch operation options
	ShowProgress   bool
	MaxConcurrency int
	MaxRetries     int
	ShowMetrics    bool
	DebugMode      bool
}