>>> from mxene.core.mxenes import MXene
>>> from pymatgen.io.vasp import Poscar, Kpoints, Incar
>>> from mxene.prepare.conf_files import opt_incar
>>> from mxene.prepare import pre_potcar
>>> from mxene.prepare.vaspinput import MXVaspInput
>>>
>>> kpoints = Kpoints(kpts=((3, 3, 1),))
>>> incar = Incar.from_string(opt_incar)
>>> pos = MXene.from_file('POSCAR')
>>>
>>> for i in ["Mo", "Sc", "Ag"]:
>>> pos.replace(44, i)
>>> poscar = Poscar(pos)
>>> sym_potcar_map = pre_potcar.check_potcar(potpath=r"POT-database")
>>> potcar = pre_potcar.get_potcar(poscar, sym_potcar_map=sym_potcar_map)
>>> mxinput = MXVaspInput(incar, kpoints, poscar, potcar, optional_files=None)
>>> mxinput.write_input(output_dir='mxene_data' + '\\' + i, make_dir_if_not_present=True)