Hadamard gate on multiple wires causes error

[s110m]

Consider the following:

# tq.QuantumState to prepare an EPR pair

# q_state = tq.QuantumState(n_wires=2)
q_state = tq.QuantumDevice(n_wires=2, bsz=2, device="cpu")
q_state.h(wires=0)
q_state.cnot(wires=[0, 1])
q_state.rx(wires=0, params=0.3)

print(q_state)
bitstring = tq.measure(q_state, n_shots=1024, draw_id=0)
print(bitstring)

Suppose I want to apply a Hadamard gate on wires 0 and 1.
When I try q_state.h(wires=[0, 1]), it gives me an error.
Of course, I can write it in two lines using:

q_state.h(wires=0)
q_state.h(wires=1)

But in the docstring, the argument is specified as wires (Union[List[int], int]): Which qubit(s) to apply the gate to.

Is my understanding correct? Or does this need correction?

Thanks!