[PWGGAJE] Param Model: better multiplicity model

[aimeric-landou]

No description provided.

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[aimeric-landou]

Hi,
I am not sure why the simulation tests fail: I have been trying them manually (see command below) and all 6 pass successfully.

ssh username@lxplus.cern.ch
/cvmfs/alice.cern.ch/bin/alienv enter O2sim
cd /tmp && git clone https://github.com/AliceO2Group/O2DPG.git && cd O2DPG
git fetch origin pull/2486/head:testing
git switch testing
O2DPG_TEST_REPO_DIR=$PWD test/run_generator_tests.sh

as for the Validate syntax / Pylint check, it mentions files that I have not edited; why is it failing on my PR?

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REQUEST FOR PRODUCTION RELEASES:
To request your PR to be included in production software, please add the corresponding labels called "async-" to your PR. Add the labels directly (if you have the permissions) or add a comment of the form (note that labels are separated by a ",")

+async-label <label1>, <label2>, !<label3> ...

This will add <label1> and <label2> and removes <label3>.

The following labels are available
async-2023-pbpb-apass4
async-2023-pp-apass4
async-2024-pp-apass1
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