input: 
  def create_vector_3d(x: float, y: float, z: float) -> str:
      """
      Create a 3D vector represented as a string with the given x, y, and z coordinates.
      >>> create_vector_3d(1.0, 2.5, 3.7)
      '(1.0, 2.5, 3.7)'
      >>> create_vector_3d(0.0, 0.0, 0.0)
      '(0.0, 0.0, 0.0)'
      """
  
output:     return f'({x}, {y}, {z})'