def d2logpdf_dlink2_dtheta(self, f, y, Y_metadata=None):
d2logpdf_dlink_dtheta2 = np.zeros((self.size, f.shape[<NUM_LIT:0>], f.shape[<NUM_LIT:1>]))<EOL>d2logpdf_dlink_dtheta2[<NUM_LIT:0>, :, :] = self.d2logpdf_dlink2_dr(f, y, Y_metadata)<EOL>return d2logpdf_dlink_dtheta2<EOL>
:param f:
:param y:
:param Y_metadata:
:return: