docs: def _load_raster_text(self, raster_path):
          """
          Loads grass ASCII to object
          """
          # Open file and read plain text into text field
          with open(raster_path, 'r') as f:
              self.rasterText = f.read()
  
          # Retrieve metadata from header
          lines = self.rasterText.split('\n')
          for line in lines[0:6]:
              spline = line.split()
  
              if 'north' in spline[0].lower():
                  self.north = float(spline[1])
              elif 'south' in spline[0].lower():
                  self.south = float(spline[1])
              elif 'east' in spline[0].lower():
                  self.east = float(spline[1])
              elif 'west' in spline[0].lower():
                  self.west = float(spline[1])
              elif 'rows' in spline[0].lower():
                  self.rows = int(spline[1])
              elif 'cols' in spline[0].lower():
                  self.columns = int(spline[1])