What is the test for unanimity in a criminal trial where there are two separate crimes?

the same criminal act. [Citations.] [] This requirement of unanimity as to the criminal act 'is intended to eliminate the danger that the defendant will be convicted even though there is no single offense which all the jurors agree the defendant committed.' [Citation.] . . . [] On the other hand, where the evidence shows only a single discrete crime but leaves room for disagreement as to exactly how that crime was committed or what the defendant's precise role was, the jury need not unanimously agree on the basis or, as the cases often put it, the 'theory' whereby the defendant is guilty." (People v. Russo (2001) 25 Cal.4th 1124, 1132.)