docstr: Returns the Lie algebra associated with D_n"
docstr_tok: ["Returns","the","Lie","algebra","associated","with","D_n","''"]
code: def lie_algebra(self):
      """
      Returns the Lie algebra associated with D_n"
      """
  
      n = self.n
      return "so(" + str(2 * n) + ")"
  
file_path: sympy/sympy/liealgebras/type_d.py
imports: from .cartan_type import Standard_Cartan
  from sympy.core.backend import eye
label_desc: Use image node_id 9 for calling the TypeD obj's underlying member method code with example usage: obj.lie_algebra() and returns: unknown