renderer

type Attachment struct {
	Source io.Reader
	Mime   string
	Name   string
}

type AttachmentIndex map[string]*Attachment

type DriverDefinition struct {
	Name        string               `json:"name"`
	InputTypes  []types.DocumentType `json:"inputTypes"`
	OutputTypes []types.DocumentType `json:"outputTypes"`
}

type RendererPayload struct {
	Template     io.Reader
	TemplateType types.DocumentType
	TargetType   types.DocumentType
	Variables    map[string]interface{}
	Options      map[string]string
	Partials     []*TemplatePartial
	Attachments  AttachmentIndex
}

type TemplatePartial struct {
	Handle       string
	Template     io.Reader
	TemplateType types.DocumentType
}