diff --git a/src/ifcopenshell-python/ifcopenshell/__init__.py b/src/ifcopenshell-python/ifcopenshell/__init__.py
index cfb4b87299..5bb478268a 100644
--- a/src/ifcopenshell-python/ifcopenshell/__init__.py
+++ b/src/ifcopenshell-python/ifcopenshell/__init__.py
@@ -291,11 +291,31 @@ def guess_format(path: Path) -> Literal[".ifc", ".ifcZIP", ".ifcXML", ".ifcJSON"
 
 
 def stream2(path: Union[Path, str]):
+    """Streams the content of a file path from disk, yielding each instance
+    as a dictionary.
+
+    Args:
+        path (Union[Path, str]): _description_
+
+    Yields:
+        _type_: _description_
+    """
     streamer = ifcopenshell_wrapper.InstanceStreamer(str(path))
     while streamer:
         if inst := streamer.read_instance_py():
             yield inst
 
+def convert_path_to_rocksdb(ifcspf_path: Union[Path, str], rocksdb_path: Union[Path, str]):
+    """Converts an IFC-SPF file on disk to the IfcOpenShell-specific
+    RocksDB encoding. RocksDB is an embedded key-value store that allows
+    partial reads and is therefore more memory efficient with larger files.
+
+    Args:
+        ifcspf_path (Union[Path, str]): Input file path - needs to exist
+        rocksdb_path (Union[Path, str]): RocksDB file path (directory) - may exist, but result may then be invalid
+    """
+    ser = ifcopenshell_wrapper.RocksDbSerializer(str(ifcspf_path), str(rocksdb_path), True)
+    ser.finalize()
 
 version_core = ifcopenshell_wrapper.version()
 __version__ = version = "0.0.0"