feat: add function __contains__ in DataModel class

Author: LeonardoLBraga

synalinks/src/backend/pydantic/core.py

@@ -562,6 +562,19 @@ def __rxor__(self, other):
                 ops.Xor()(other, self),
             )
 
+    def __contains__(cls, other):
+        """Check if the schema of `other` is contained in this one.
+
+        Args:
+            other (SymbolicDataModel | DataModel): The other data model to compare with.
+
+        Returns:
+            (bool): True if all properties of `other` are present in this one.
+        """
+        from synalinks.src.backend.common.json_schema_utils import contains_schema
+
+        return contains_schema(cls.get_schema(), other.get_schema())
+
     def get_config(self):
         return self.get_json()