I need to convert a QuantumCircuit to a string of the equivalent OpenQasm 2.0 circuit in qiskit.

It seems like the method .qasm() disappeared from the QuantumCircuit class in qiskit 1.0
And I wasn’t able to find an alternative.

I need the qiskit 1.0 version of this:

c  = qiskit.QuantumCircuit(1)
c.h(0)

c.qasm()