diff --git a/jacodb-panda-dynamic/src/main/kotlin/org/jacodb/panda/dynamic/ark/dto/Ark.kt b/jacodb-panda-dynamic/src/main/kotlin/org/jacodb/panda/dynamic/ark/dto/Ark.kt
index 3e025f2f0..a9da15d46 100644
--- a/jacodb-panda-dynamic/src/main/kotlin/org/jacodb/panda/dynamic/ark/dto/Ark.kt
+++ b/jacodb-panda-dynamic/src/main/kotlin/org/jacodb/panda/dynamic/ark/dto/Ark.kt
@@ -16,7 +16,12 @@
 
 package org.jacodb.panda.dynamic.ark.dto
 
+import kotlinx.serialization.ExperimentalSerializationApi
 import kotlinx.serialization.Serializable
+import kotlinx.serialization.decodeFromString
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.json.decodeFromStream
+import java.io.InputStream
 
 @Serializable
 data class Ark(
@@ -28,7 +33,23 @@ data class Ark(
     val classes: List<Class>,
     val importInfos: List<ImportInfo>,
     val exportInfos: List<ExportInfo>,
-)
+) {
+    companion object{
+        private val json = Json {
+            classDiscriminator = "_"
+            prettyPrint = true
+        }
+
+        fun loadFromJson(jsonString: String): Ark {
+            return json.decodeFromString(jsonString)
+        }
+
+        @OptIn(ExperimentalSerializationApi::class)
+        fun loadFromJson(stream: InputStream): Ark {
+            return json.decodeFromStream(stream)
+        }
+    }
+}
 
 @Serializable
 data class Namespace(
diff --git a/jacodb-panda-dynamic/src/main/kotlin/org/jacodb/panda/dynamic/ark/dto/io.kt b/jacodb-panda-dynamic/src/main/kotlin/org/jacodb/panda/dynamic/ark/dto/io.kt
deleted file mode 100644
index ce27b88a3..000000000
--- a/jacodb-panda-dynamic/src/main/kotlin/org/jacodb/panda/dynamic/ark/dto/io.kt
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- *  Copyright 2022 UnitTestBot contributors (utbot.org)
- * <p>
- *  Licensed under the Apache License, Version 2.0 (the "License");
- *  you may not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- * <p>
- *  http://www.apache.org/licenses/LICENSE-2.0
- * <p>
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS,
- *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- */
-
-package org.jacodb.panda.dynamic.ark.dto
-
-import kotlinx.serialization.ExperimentalSerializationApi
-import kotlinx.serialization.decodeFromString
-import kotlinx.serialization.json.Json
-import kotlinx.serialization.json.decodeFromStream
-import java.io.InputStream
-
-private val json = Json {
-    classDiscriminator = "_"
-    prettyPrint = true
-}
-
-fun loadArkFromJson(jsonString: String): Ark {
-    return json.decodeFromString(jsonString)
-}
-
-@OptIn(ExperimentalSerializationApi::class)
-fun loadArkFromJson(stream: InputStream): Ark {
-    return json.decodeFromStream(stream)
-}
diff --git a/jacodb-panda-dynamic/src/test/kotlin/ark/ArkFromJsonTest.kt b/jacodb-panda-dynamic/src/test/kotlin/ark/ArkFromJsonTest.kt
index c03aa118e..1ba3d366b 100644
--- a/jacodb-panda-dynamic/src/test/kotlin/ark/ArkFromJsonTest.kt
+++ b/jacodb-panda-dynamic/src/test/kotlin/ark/ArkFromJsonTest.kt
@@ -16,7 +16,7 @@
 
 package ark
 
-import org.jacodb.panda.dynamic.ark.dto.loadArkFromJson
+import org.jacodb.panda.dynamic.ark.dto.Ark
 import org.junit.jupiter.api.Test
 
 class ArkFromJsonTest {
@@ -25,7 +25,7 @@ class ArkFromJsonTest {
         val path = "basic.ts.json"
         val stream = object {}::class.java.getResourceAsStream("/$path")
             ?: error("Resource not found: $path")
-        val ark = loadArkFromJson(stream)
+        val ark = Ark.loadFromJson(stream)
         println(ark)
     }
 }