feat(MLRsearch): MLRsearch v7

Replaces MLRv2, suitable for "big bang" upgrade across CSIT.
PyPI metadata updated only partially (full edits will come separately).
Pylint wants less complexity, but the differences are only minor.

+ Use the same (new CSIT) defaults everywhere, also in Python library.
+ Update also PLRsearch to use the new result class.
+ Make upper bound optional in UTI.
+ Fix ASTF approximate duration detection.
+ Do not keep approximated_receive_rate (for MRR) in result structure.

Change-Id: I03406f32d5c93f56b527cb3f93791b61955dfd74
Signed-off-by: Vratko Polak <vrpolak@cisco.com>

1 files changed, 56 insertions, 0 deletions

diff --git a/resources/libraries/python/MLRsearch/relevant_bounds.py b/resources/libraries/python/MLRsearch/relevant_bounds.py
new file mode 100644
index 0000000000..4bc6796f71
--- /dev/null
+++ b/resources/libraries/python/MLRsearch/relevant_bounds.py
@@ -0,0 +1,56 @@
+# Copyright (c) 2023 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Module defining RelevantBounds class."""
+
+from __future__ import annotations
+
+from dataclasses import dataclass
+from typing import Optional
+
+from .trimmed_stat import TrimmedStat
+
+
+@dataclass
+class RelevantBounds:
+    """Container for the pair of relevant bounds for a target.
+
+    If there is no valid bound, None is used.
+
+    Relevant upper bound is smallest load acting as an upper bound.
+    Relevant lower bound acts as a lower bound, has to be strictly smaller
+    than the relevant upper bound, and is largest among such loads.
+
+    The short names "clo" and "chi" are also commonly used
+    in logging and technical comments.
+
+    Trimming could be done here, but it needs to known the target explicitly,
+    so it is done in MeasurementDatabase instead.
+    """
+
+    clo: Optional[TrimmedStat]
+    """The relevant lower bound (trimmed) for the current target."""
+    chi: Optional[TrimmedStat]
+    """The relevant upper bound (trimmed) for the current target."""
+
+    # TODO: Check types in post init?
+
+    def __str__(self) -> str:
+        """Convert into a short human-readable string.
+
+        :returns: The short string.
+        :rtype: str
+        """
+        clo = int(self.clo) if self.clo else None
+        chi = int(self.chi) if self.chi else None
+        return f"clo={clo},chi={chi}"