Function rustpython_vm::function::single_or_tuple_any

pub fn single_or_tuple_any<T: PyValue, F: Fn(PyRef<T>) -> PyResult<bool>>(
    obj: PyObjectRef, 
    predicate: F, 
    message: fn(_: &PyObjectRef) -> String, 
    vm: &VirtualMachine
) -> PyResult<bool>

Tests that the predicate is True on a single value, or if the value is a tuple a tuple, then test that any of the values contained within the tuples satisfies the predicate. Type parameter T specifies the type that is expected, if the input value is not of that type or a tuple of values of that type, then a TypeError is raised.