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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 bogoliubov_trans(p, q, theta):
 r"""The 2-mode Bogoliubov transformation is mapped to two-qubit operations. We use the identity X S^\dag X S X = Y X S^\dag Y S X = X to transform the Hamiltonian XY+YX to XX+YY type. The time evolution of the XX + YY Hamiltonian can be expressed as a power of the iSWAP gate. Args: p: the first qubit q: the second qubit theta: The rotational angle that specifies the Bogoliubov transformation, which is a function of the kinetic energy and the superconducting gap. """


    # The iSWAP gate corresponds to evolve under the Hamiltonian XX+YY for
    # time -pi/4.
    expo = -4 * theta / np.pi

    yield cirq.X(p)
    yield cirq.S(p)
    yield cirq.ISWAP(p, q)**expo
    yield cirq.S(p) ** 1.5
    yield cirq.X(p)