TypeError: function takes exactly 1 argument (0 given)

gA = GeoArray(path_2d_image)
gA[row, col]
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-26-21f390dd2654> in <module>
      1 gA = GeoArray(path_cmap)
----> 2 gA[row, col]

~/scheffler/python_deployed/geoarray/geoarray/baseclasses.py in __getitem__(self, given)
    603         else:
    604             getitem_params = [given] if isinstance(given, slice) else given
--> 605             return self.from_path(self.arg, getitem_params)
    606 
    607     def __setitem__(self, idx, array2set):

~/scheffler/python_deployed/geoarray/geoarray/baseclasses.py in from_path(self, path, getitem_params)
    907                 del ds
    908 
--> 909             out_arr = _ensure_np_shape_consistency_3D_2D(out_arr)
    910 
    911             # only set self.arr if the whole cube has been read (in order to avoid sudden shape changes)

~/scheffler/python_deployed/geoarray/geoarray/baseclasses.py in _ensure_np_shape_consistency_3D_2D(arr)
    871                         outshape.append(sh)
    872 
--> 873                 arr = arr.reshape(*outshape)
    874 
    875             return arr

TypeError: function takes exactly 1 argument (0 given