Document migration of MeasLevel and MeasReturnType

Author: ElePT

qiskit/result/__init__.py

@@ -47,14 +47,15 @@
 ==================
 
 .. autofunction:: sampled_expectation_value
+
 """
 
-from .result import Result
+from .counts import Counts
+from .distributions import QuasiDistribution, ProbDistribution
 from .exceptions import ResultError
+from .models import MeasLevel, MeasReturnType
+from .result import Result
+from .sampled_expval import sampled_expectation_value
 from .utils import marginal_counts
 from .utils import marginal_distribution
 from .utils import marginal_memory
-from .counts import Counts
-
-from .distributions import QuasiDistribution, ProbDistribution
-from .sampled_expval import sampled_expectation_value

releasenotes/notes/remove-backend-v1-et-al-cccd8f6b71a97ffc.yaml

@@ -57,10 +57,13 @@ upgrade_misc:
     *    ``QobjMeasurementOption``
     *    ``PulseLibraryItem``
 
+  - |
     The :class:`.MeasLevel` and :class`.MeasReturnType` classes, previously defined in 
     ``qobj/utils.py``, have been migrated to ``result/models.py`` following the removal
-    of the ``qobj`` module. These classes were not part of the public API, so there should
-    not be any effect on users from this move.
+    of the ``qobj`` module. These classes were not part of the public API. 
+    The import path has been updated 
+    from: ``from qiskit.qobj.utils import MeasLevel, MeasReturnType`` to: 
+    ``from qiskit.result import MeasLevel, MeasReturnType``.
 
   - |
     The use of positional arguments in the constructor of :class:`.Result` has been disabled.