add example Qobj instance to parser.py, linting

src/nomad_parser_qutip/parsers/parser.py

@@ -12,7 +12,6 @@
 
 from nomad.config import config
 from nomad.parsing.parser import MatchingParser
-from nomad.datamodel.metainfo.workflow import Workflow
 from nomad_simulations.schema_packages.general import Program, Simulation
 
 configuration = config.get_plugin_entry_point(
@@ -31,5 +30,16 @@ def parse(
         simulation = Simulation()
         # here we are populating the archive with the program name
         simulation.program = Program(name='QuTiP')
+
+        # an example Qobj instance:
+        # qobj_instance = Qobj(
+        # dims=[[2], [1]],
+        # shape=[2, 1],
+        # type='ket',
+        # dtype='Dense',
+        # isherm=True,
+        # data=np.array([[1.0], [0.0]]),
+        # )
+
         # put the simulation section into archive data
         archive.data = simulation