feat: add terminus

types.go

@@ -57,3 +57,10 @@ func (resp *APIResponse) String() string {
 	}
 	return strings.TrimSpace(sb.String())
 }
+
+// Terminus 终止符, 一个空格
+type Terminus struct{}
+
+func (Terminus) String() string {
+	return " "
+}