message: Moving pybind11 header upwards
  To avoid the Python redefinition errors
diff: #ifndef ADIOS2_BINDINGS_PYTHON_VARIABLE_H_
  #define ADIOS2_BINDINGS_PYTHON_VARIABLE_H_
  -#include "py11Operator.h"
  -
  #include <pybind11/numpy.h>
  +#include "py11Operator.h"
  +
  #include "adios2/core/VariableBase.h"
  namespace adios2
  @@ -22,6 +22,9 @@ namespace adios2
  namespace py11
  {
  +class IO;
  +class Engine;
  +
  class Variable
  {
  friend class IO;
  