add method to load from bytes

config.go

@@ -91,7 +91,6 @@ func (c *Config) Zero() TinD {
 		bytes:  make([]byte, c.size),
 		config: c,
 	}
-	t.String() // set the string so it's faster to recall
 	return t
 }
 
@@ -138,3 +137,14 @@ func (c *Config) FromString(in string) (TinD, error) {
 	}
 	return TinD(t), nil
 }
+
+func (c *Config) Load(in []byte) (TinD, error) {
+	if len(in) != c.size {
+		return c.Zero(), errors.New("given id isn't the same size as the configuration")
+	}
+	t := TinD{
+		bytes:  in,
+		config: c,
+	}
+	return t, nil
+}