code: def lookupSpatialReferenceID(cls, directory, filename):
          
  
          path = os.path.join(directory, filename)
  
          with open(path, 'r') as f:
              srid = lookupSpatialReferenceID(f.read())
  
          return srid
docs: Look up spatial reference system using the projection file.
  
          Args:
              directory (str):
              filename (str):
  
          Return:
              int: Spatial Reference ID