Does section 425.16 of the Anti-SLAPP Act apply to mixed causes of action?

In applying section 425.16 to mixed causes of action, "it is the principal thrust or gravamen of the plaintiff's cause of action that determines whether the anti-SLAPP statute applies [citation], and when the allegations referring to arguably protected activity are only incidental to a cause of action based essentially on nonprotected activity, collateral allusions to protected activity should not subject the cause of action to the anti-SLAPP statute." (Martinez v. Metabolife Internat., Inc. (2003) 113 Cal.App.4th 181,

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