  Transverse spherocity is an event shape observable having a very unique
capability to separate the events based on their geometrical shapes. Recent
results from experiments at the LHC suggest that transverse spherocity is an
important event classifier in small collision systems. In this work, we use
transverse spherocity for the first time in heavy-ion collisions and perform an
extensive study on azimuthal anisotropy of charged particles produced in Pb-Pb
collisions at $\sqrt{s_{\rm{NN}}} = 5.02$ TeV using A Multi-Phase Transport
Model (AMPT). The azimuthal anisotropy is estimated using the 2-particle
correlation method, which suppresses the non-flow effects significantly with an
appropriate pseudorapidity gap of particle pairs. The results from AMPT are
compared with estimations from PYTHIA8 (Angantyr) model and it is found that
with the chosen pseudorapidity gap the residual non-flow effects become
negligible. We found that the high spherocity events have nearly zero elliptic
flow while low spherocity events contribute significantly to elliptic flow of
spherocity-integrated events. Our studies indicate that using transverse
spherocity in heavy-ion collisions, one can enhance and/or suppress the
collective effects.
