Simultaneous fits on invariant mass distribution, $\langle \langle 2' \rangle \rangle$, and $\langle \langle 4' \rangle \rangle$ correlations of \Kos meson at 1.1$<\pt{}<$1.3 GeV/$c$ for centrality 40--50\% in $\sqrt{s_{\mathrm{NN}}} = 5.02$ TeV Pb--Pb collisions.