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type ArgSpec struct {
	// Start index, inclusive.
	Start int
	// End index, exclusive. A negative value indicates that all remaining
	// arguments beginning with Start should be consumed.
	End int
}

type Command struct {
	// Name of the command to be generated. This defaults to the name of the
	// package, unless overridden.
	Name string

	// Package name from which the  Command is sourced.
	Package string

	// Type name of the  Command implementation.
	Type string

	// Help output for the  Command. This will be displayed along with usage
	// information on the command line. By default, sourced from doc comment for
	// the package in which the wrapped Command will live.
	Help string

	// Description of the command. Should be short and human readable. By
	// default, sourced from the doc comment on the wrapped  Command type.
	Description string

	// Inputs describe the handling of struct fields on the wrapped Command
	// implementation as inputs on the command line. The inputs are derived from
	// struct tags, when set.
	Inputs []CommandInput
	// contains filtered or unexported fields
}

type CommandInput struct {
	FieldName string
	Tag       Tag
	Doc       string
	Type      string
}

type FlagSpec struct {
	Long  string
	Short string
}

type Tag string