docs: def common_vector_root(vec1, vec2):
      """
      Return common root of the two vectors.
  
      Args:
          vec1 (list/tuple): First vector.
          vec2 (list/tuple): Second vector.
  
      Usage example::
  
          >>> common_vector_root([1, 2, 3, 4, 5], [1, 2, 8, 9, 0])
          [1, 2]
  
      Returns:
          list: Common part of two vectors or blank list.
      """
      root = []
      for v1, v2 in zip(vec1, vec2):
          if v1 == v2:
              root.append(v1)
          else:
              return root
  
      return root