Move print delegation.

src/main/java/org/byteskript/skript/runtime/internal/ExtractedSyntaxCalls.java

@@ -99,8 +99,9 @@ public static void runOnMainThread(final Instruction<?> runnable) throws Throwab
     }
 
     public static void print(Object object) throws Throwable {
-        final Skript skript = findInstance();
-        skript.println(object);
+        final Thread current = Thread.currentThread();
+        if (current instanceof ScriptThread thread) thread.println(object);
+        else System.out.println(object);
     }
 
     public static String readSystemInput() throws Throwable {

src/main/java/org/byteskript/skript/runtime/threading/ScriptThread.java

@@ -11,6 +11,8 @@
 import org.byteskript.skript.runtime.internal.CompiledScript;
 import org.byteskript.skript.runtime.internal.ThreadVariableMap;
 
+import java.io.PrintWriter;
+
 /**
  * A script thread.
  * All scripts should run on script threads.
@@ -29,11 +31,21 @@ public class ScriptThread extends Thread {
     public final Skript skript;
     public Class<? extends CompiledScript> initiator;
     public Event event;
+    private PrintWriter writer;
 
     public ScriptThread(final Skript skript, final OperationController controller, ThreadGroup group, Runnable target, String name, long stackSize, boolean inheritThreadLocals) {
         super(group, target, name, stackSize, inheritThreadLocals);
         this.skript = skript;
         this.controller = controller;
         this.queue = controller.queue;
     }
+
+    public void println(Object object) {
+        if (writer != null) writer.println(object);
+        else skript.println(object);
+    }
+
+    public void setWriter(PrintWriter writer) {
+        this.writer = writer;
+    }
 }

src/main/java/org/byteskript/skript/runtime/type/OperatorFunction.java

@@ -29,12 +29,12 @@ public boolean reversible() {
         };
     }
 
-    Object union(A first, B second) throws Throwable;
-
     default Object union2(B first, A second) throws Throwable {
         return this.union(second, first);
     }
 
+    Object union(A first, B second) throws Throwable;
+
     default boolean reversible() {
         return true;
     }