diff --git a/ollama/_types.py b/ollama/_types.py
index 76a6174..fc4e178 100644
--- a/ollama/_types.py
+++ b/ollama/_types.py
@@ -401,9 +401,9 @@ class PushRequest(BaseStreamableRequest):
 
 
 class CreateRequest(BaseStreamableRequest):
-  @model_serializer
-  def serialize_model(self):
-    output = {k: v for k, v in self.__dict__.items() if v is not None}
+  @model_serializer(mode='wrap')
+  def serialize_model(self, nxt):
+    output = nxt(self)
     if 'from_' in output:
         output['from'] = output.pop('from_')
     return output
diff --git a/tests/test_type_serialization.py b/tests/test_type_serialization.py
index 8200ce3..195bac8 100644
--- a/tests/test_type_serialization.py
+++ b/tests/test_type_serialization.py
@@ -2,7 +2,7 @@ from base64 import b64encode
 from pathlib import Path
 
 import pytest
-from ollama._types import Image
+from ollama._types import CreateRequest, Image
 import tempfile
 
 
@@ -52,3 +52,67 @@ def test_image_serialization_string_path():
   with pytest.raises(ValueError):
     img = Image(value='not an image')
     img.model_dump()
+
+
+
+
+def test_create_request_serialization():
+    request = CreateRequest(
+        model="test-model",
+        from_="base-model",
+        quantize="q4_0",
+        files={"file1": "content1"},
+        adapters={"adapter1": "content1"},
+        template="test template",
+        license="MIT",
+        system="test system",
+        parameters={"param1": "value1"}
+    )
+    
+    serialized = request.model_dump()
+    assert serialized["from"] == "base-model" 
+    assert "from_" not in serialized 
+    assert serialized["quantize"] == "q4_0"
+    assert serialized["files"] == {"file1": "content1"}
+    assert serialized["adapters"] == {"adapter1": "content1"}
+    assert serialized["template"] == "test template"
+    assert serialized["license"] == "MIT"
+    assert serialized["system"] == "test system"
+    assert serialized["parameters"] == {"param1": "value1"}
+
+
+
+def test_create_request_serialization_exclude_none_true():
+    request = CreateRequest(
+        model="test-model",
+        from_=None,
+        quantize=None
+    )
+    serialized = request.model_dump(exclude_none=True)
+    assert serialized == {"model": "test-model"} 
+    assert "from" not in serialized
+    assert "from_" not in serialized
+    assert "quantize" not in serialized
+
+
+def test_create_request_serialization_exclude_none_false():
+    request = CreateRequest(
+        model="test-model",
+        from_=None,
+        quantize=None
+    )
+    serialized = request.model_dump(exclude_none=False)
+    assert "from" in serialized
+    assert "quantize" in serialized
+    assert "adapters" in serialized
+    assert "from_" not in serialized
+
+
+def test_create_request_serialization_license_list():
+    request = CreateRequest(
+        model="test-model",
+        license=["MIT", "Apache-2.0"]
+    )
+    serialized = request.model_dump()
+    assert serialized["license"] == ["MIT", "Apache-2.0"]
+