util

func Check(err error, out io.Writer, msg string, args ...interface{}) bool

func LoadSSZ(path string, dst interface{}, ssz types.SSZ) error

func LoadSSZInput(r io.Reader, dst interface{}, ssz types.SSZ) error

func LoadSSZInputPath(cmd *cobra.Command, inPath string, stdInFallback bool, dst interface{}, ssz types.SSZ) error

func LoadStateInput(r io.Reader) (*phase0.BeaconState, error)

func LoadStateInputFlag(cmd *cobra.Command, inputKey string, stdInFallback bool) (*phase0.BeaconState, error)

func LoadStateInputPath(cmd *cobra.Command, inPath string, stdInFallback bool) (*phase0.BeaconState, error)

func Report(out io.Writer, msg string, args ...interface{})

func WriteStateOutput(cmd *cobra.Command, outKey string, state *phase0.BeaconState) error