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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def write_vasp_input(self, vasp_input_set=MPRelaxSet, output_dir=".", create_directory=True, **kwargs):
 """ Writes VASP input to an output_dir. Args: vasp_input_set: pymatgen.io.vaspio_set.VaspInputSet like object that creates vasp input files from structures output_dir: Directory to output files create_directory: Create the directory if not present. Defaults to True. \\*\\*kwargs: All keyword args supported by the VASP input set. """

        vasp_input_set(self.final_structure, **kwargs).write_input(
            output_dir, make_dir_if_not_present=create_directory)
        with open(os.path.join(output_dir, "transformations.json"), "w") as fp:
            json.dump(self.as_dict(), fp)