diff --git a/pylasu/emf/__init__.py b/pylasu/emf/__init__.py
new file mode 100644
index 0000000..908646e
--- /dev/null
+++ b/pylasu/emf/__init__.py
@@ -0,0 +1,2 @@
+from .metamodel_builder import MetamodelBuilder
+from .model import *
diff --git a/pylasu/playground/__init__.py b/pylasu/playground/__init__.py
index e69de29..ac7c381 100644
--- a/pylasu/playground/__init__.py
+++ b/pylasu/playground/__init__.py
@@ -0,0 +1,2 @@
+from .transpilation_trace import TranspilationTrace
+from .transpilation_trace_ecore import TranspilationTrace as ETranspilationTrace
diff --git a/tests/test_metamodel_builder.py b/tests/test_metamodel_builder.py
index 412f2fb..f2be6eb 100644
--- a/tests/test_metamodel_builder.py
+++ b/tests/test_metamodel_builder.py
@@ -1,7 +1,7 @@
 import unittest
 from pyecore.ecore import EObject
 
-from pylasu.emf.metamodel_builder import MetamodelBuilder
+from pylasu.emf import MetamodelBuilder
 from tests.fixtures import Box, ReinforcedBox
 
 
diff --git a/tests/test_transpilation_trace.py b/tests/test_transpilation_trace.py
index 9d3911b..f52bbf4 100644
--- a/tests/test_transpilation_trace.py
+++ b/tests/test_transpilation_trace.py
@@ -5,9 +5,8 @@
 
 import pylasu.StrumentaLanguageSupport as starlasu
 from pylasu.StrumentaLanguageSupport import ASTNode
-from pylasu.emf.metamodel_builder import MetamodelBuilder
-from pylasu.playground.transpilation_trace import TranspilationTrace
-from pylasu.playground.transpilation_trace_ecore import TranspilationTrace as ETranspilationTrace
+from pylasu.emf import MetamodelBuilder
+from pylasu.playground import TranspilationTrace, ETranspilationTrace
 from pylasu.validation.validation import Result
 from tests.fixtures import Box