code: func GetECAddress(s string) (*ECAddress, error) {
  	if !IsValidAddress(s) {
  		return nil, fmt.Errorf("Invalid Address")
  	}
  
  	p := base58.Decode(s)
  
  	if !bytes.Equal(p[:PrefixLength], ecSecPrefix) {
  		return nil, fmt.Errorf("Invalid Entry Credit Private Address")
  	}
  
  	return MakeECAddress(p[PrefixLength:BodyLength])
  }
docs: // GetECAddress takes a private address string (Es...) and returns an ECAddress.