1 files changed, 14 insertions, 1 deletions
diff --git a/model/numberNode.go b/model/numberNode.go
index e1bffd9..b61b63c 100644
--- a/model/numberNode.go
+++ b/model/numberNode.go
@@ -1,6 +1,9 @@
 package model
 
-import "strconv"
+import (
+	"fmt"
+	"strconv"
+)
 
 type NumberNode struct {
 	Value float64
@@ -13,3 +16,13 @@ func (n NumberNode) Type() NodeType {
 func (n *NumberNode) MarshalJSON() ([]byte, error) {
 	return []byte(strconv.FormatFloat(n.Value, 'g', -1, 64)), nil
 }
+
+func (n *NumberNode) Set(v any) error {
+	switch v := v.(type) {
+	case float64:
+		n.Value = v
+	case int:
+		n.Value = float64(v)
+	}
+	return fmt.Errorf("%v is not number", v)
+}