What is the test for habeas relief in the context of claims of instructional error?

Generally, claims of instructional error are questions of state law and are not cognizable on federal habeas review. "[T]he fact that [an] instruction was allegedly incorrect under state law is not a basis for habeas relief." Estelle, 502 U.S. at 71-72 (1991) (citing Marshall v. Lonberger, 459 U.S. 422, 438, n.6 (1983) ("[T]he Due Process Clause does not permit the federal courts to engage in a finely tuned review of the wisdom of state evidentiary rules")). A petitioner may not

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