import ifcopenshell

def merge_objects(ifc_file, swept_solid_guid, tessellation_guid, new_name):
    # Find the existing objects by their GUIDs
    swept_solid_object = ifc_file.by_guid(swept_solid_guid)
    tessellation_object = ifc_file.by_guid(tessellation_guid)

    # Extract the Swept Solid Representation
    swept_solid_representation = swept_solid_object.Representation.Representations[0]

    # Iterate over the representations to find the Tessellation Representation
    tessellation_representation = None
    for representation in tessellation_object.Representation.Representations:
        if representation.RepresentationType == "Tessellation":
            tessellation_representation = representation
            break

    # Ensure the tessellation representation was found
    if tessellation_representation is None:
        raise ValueError(f"Tessellation representation not found for GUID: {tessellation_guid}")

    # Create a new IfcProductDefinitionShape
    product_shape = ifc_file.create_entity('IfcProductDefinitionShape', None, None, [swept_solid_representation, tessellation_representation])

    # Find a suitable context for the new column
    context = ifc_file.by_type('IfcGeometricRepresentationContext')[0]

    # Get owner history (use the owner history from the existing objects, or create new if necessary)
    owner_history = swept_solid_object.OwnerHistory if hasattr(swept_solid_object, 'OwnerHistory') else None

    # Create a new GUID for the new column
    new_guid = ifcopenshell.guid.new()

    # Create a new IfcColumn entity
    new_column = ifc_file.create_entity(
        'IfcColumn', 
        GlobalId=new_guid, 
        OwnerHistory=owner_history,
        Name=new_name,
        Description=None, 
        ObjectType=None,
        ObjectPlacement=None, 
        Representation=product_shape,
        Tag=None
    )

    # Add the new column to the IFC file
    ifc_file.add(new_column)

# Load the IFC file
ifc_file_path = 'C:/Users/...'
ifc_file = ifcopenshell.open(ifc_file_path)

# Manually merge objects
merge_objects(ifc_file, '0BGGu3Lxz12wnpWMluejEl', '0Fikoh4QLCovJq6Skjua_c', 'Column 300x60x500 right 2')

# Save the modified IFC file
ifc_file.write('C:/Users/...')