code: def parse_transform(transform_str):
      
      if not transform_str:
          return np.identity(3)
      elif not isinstance(transform_str, str):
          raise TypeError('Must provide a string to parse')
  
      total_transform = np.identity(3)
      transform_substrs = transform_str.split(')')[:-1]  # Skip the last element, because it should be empty
      for substr in transform_substrs:
          total_transform = total_transform.dot(_parse_transform_substr(substr))
  
      return total_transform
docs: Converts a valid SVG transformation string into a 3x3 matrix.
      If the string is empty or null, this returns a 3x3 identity matrix