code: def _simple_blockify(tuples, dtype):
      
      values, placement = _stack_arrays(tuples, dtype)
  
      # CHECK DTYPE?
      if dtype is not None and values.dtype != dtype:  # pragma: no cover
          values = values.astype(dtype)
  
      block = make_block(values, placement=placement)
      return [block]
docs: return a single array of a block that has a single dtype; if dtype is
      not None, coerce to this dtype