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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 get_structure_by_material_id(self, material_id, final=True, conventional_unit_cell=False):
 """ Get a Structure corresponding to a material_id. Args: material_id (str):
 Materials Project material_id (a string, e.g., mp-1234). final (bool):
 Whether to get the final structure, or the initial (pre-relaxation) structure. Defaults to True. conventional_unit_cell (bool):
 Whether to get the standard conventional unit cell Returns: Structure object. """

        prop = "final_structure" if final else "initial_structure"
        data = self.get_data(material_id, prop=prop)
        if conventional_unit_cell:
            data[0][prop] = SpacegroupAnalyzer(data[0][prop]). \
                get_conventional_standard_structure()
        return data[0][prop]