Another last minute fix (#1080)

Not sure if it's final, but that's where I end up today.

Author: jakozaur

quesma/painful/model.go

@@ -199,6 +199,16 @@ func (m *MethodCallExpr) Eval(env *Env) (any, error) {
 
 		return typeVal.Format(time.RFC3339), nil
 
+	case "formatISO8601NoTimezone":
+
+		typeVal, err := ExpectDate(val)
+
+		if err != nil {
+			return nil, fmt.Errorf("%s: method '%s' failed to coerce '%v' into a datetime: %v ", m.Position, m.MethodName, val, err)
+		}
+
+		return typeVal.Format("2006-01-02T15:04:05"), nil
+
 	default:
 		return nil, fmt.Errorf("%s: '%s' method is not supported", m.Position, m.MethodName)
 	}
@@ -252,7 +262,7 @@ func ExpectDate(potentialExpr any) (time.Time, error) {
 	case string:
 
 		formats := []string{
-			"Jan 2, 2006 @ 15:04:05.000 -0700 MST", // this format in example provided by Kibana\
+			"Jan 2, 2006 @ 15:04:05.000 -0700 MST", // this format in example provided by Kibana
 			"2006-01-02 15:04:05.000 -0700 MST",    // clickhouse format
 			"2006-01-02 15:04:05 -0700 MST",        // early adopter format
 			time.Layout,