Function dpiObject_setAttributeValue 

pub unsafe extern "C" fn dpiObject_setAttributeValue(
    obj: *mut dpiObject,
    attr: *mut dpiObjectAttr,
    nativeTypeNum: dpiNativeTypeNum,
    value: *mut dpiData,
) -> c_int

Sets the value of one of the object’s attributes.

The function returns DPI_SUCCESS for success and DPI_FAILURE for failure.