list

type JSONOutputItem struct {
	Name  string  `json:"name"`
	Value *string `json:"value,omitempty"` // nil when error or not requested, pointer to distinguish from empty string
	Error string  `json:"error,omitempty"`
}

type Options struct {
	Prefix    string
	Recursive bool
	Filter    string // Regex filter pattern
	Show      bool   // Show parameter values
	Output    output.Format
}

type Runner struct {
	UseCase *param.ListUseCase
	Stdout  io.Writer
	Stderr  io.Writer
}