How can I create Mesh scoping for individual bodies in an assembly of a MAPDL result file using DPF?

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Part IDs can't be scoped directly. We need to scope based on the mapdl_element_type property and and then split it further using mat property. Example below:

import os
from ansys.dpf import core as dpf
from ansys.dpf.core.plotter import DpfPlotter

out_path = r"\PATH\TO\RST"
rst_path = os.path.join(out_path, "file.rst")

ds = dpf.DataSources(rst_path)
model = dpf.Model(ds)
mesh = model.metadata.meshed_region

"""
# SHELL181
"""

scope_op = dpf.operators.scoping.on_property(requested_location="Elemental",
                                       property_name="mapdl_element_type",
                                       property_id=181,
                                       data_sources=ds)
scoping = scope_op.outputs.mesh_scoping()
print(scoping)

mesh_scoping_op = dpf.operators.scoping.split_on_property_type(mesh_scoping=scoping, mesh=mesh, label1="mat")
mesh_scoping = mesh_scoping_op.outputs.mesh_scoping.get_data()
print(mesh_scoping)