code: def __init__(self, R, x):
      self.R = R
      self.x = x
      self.g = R.G.g
  
imports: from sympy import exp, Symbol, sin, dsolve, Function, Matrix, Eq, pprint, solve
label_desc: Use image node_id 1 to create a new Ricci object  with example: obj = Ricci(R, x)