Function PyUnicodeDecodeError_Create 

pub unsafe extern "C" fn PyUnicodeDecodeError_Create(
    encoding: *const i8,
    object: *const i8,
    length: isize,
    start: isize,
    end: isize,
    reason: *const i8,
) -> *mut PyObject

Available on crate feature tls and non-PyPy only.