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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 principal_inertia_components(self):
 """ Return the principal components of inertia Ordering corresponds to mesh.principal_inertia_vectors Returns components : (3,) float Principal components of inertia """

        # both components and vectors from inertia matrix
        components, vectors = inertia.principal_axis(self.moment_inertia)
        # store vectors in cache for later
        self._cache['principal_inertia_vectors'] = vectors

        return components