gomplate

type Delims struct {
	Left, Right string
}

type MetricsType struct {
	// times for rendering each template
	RenderDuration map[string]time.Duration
	// time it took to gather templates
	GatherDuration time.Duration
	// time it took to render all templates
	TotalRenderDuration time.Duration

	TemplatesGathered  int
	TemplatesProcessed int
	Errors             int
}

type StructTemplater struct {
	Values map[string]interface{}
	// IgnoreFields from walking where key is field name and value is field type
	IgnoreFields map[string]string
	Funcs        map[string]any
	DelimSets    []Delims
	// If specified create a function for each value so that is can be accessed via {{ value }} in addition to {{ .value }}
	ValueFunctions bool
	RequiredTag    string
}

type Template struct {
	Template   string `yaml:"template,omitempty" json:"template,omitempty"` // Go template
	JSONPath   string `yaml:"jsonPath,omitempty" json:"jsonPath,omitempty"`
	Expression string `yaml:"expr,omitempty" json:"expr,omitempty"` // A cel-go expression
	Javascript string `yaml:"javascript,omitempty" json:"javascript,omitempty"`
	RightDelim string `yaml:"-" json:"-"`
	LeftDelim  string `yaml:"-" json:"-"`

	// Pass in additional cel-env options like functions
	// that aren't simple enough to be included in Functions
	CelEnvs []cel.EnvOption `yaml:"-" json:"-"`

	// A map of functions that are accessible to cel expressions
	// and go templates.
	// NOTE: For cel expressions, the functions must be of type func() any.
	// If any other function type is used, an error will be returned.
	// Opt to CelEnvs for those cases.
	Functions map[string]any `yaml:"-" json:"-"`
}