# How can I build a controlled gate for this matrix in qiskit?

How can I build a controlled version of the below matrix in qiskit?$$\begin{pmatrix} e^{i\theta} & 0\\ 0 & e^{i\theta} \end{pmatrix} = e^{i\theta}I$$

Simply implement the gate $$\left(\begin{array}{cc} 1 & 0 \\ 0 & e^{i\theta} \end{array}\right)$$ on the control qubit.