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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_log_rhos(target_action_log_probs, behaviour_action_log_probs):
 """With the selected log_probs for multi-discrete actions of behaviour and target policies we compute the log_rhos for calculating the vtrace."""

    t = tf.stack(target_action_log_probs)
    b = tf.stack(behaviour_action_log_probs)
    log_rhos = tf.reduce_sum(t - b, axis=0)
    return log_rhos