class_docstr: Abstract Base Class for all methods.
code: def _form_eoms(self):
      raise NotImplementedError("Subclasses must implement this.")
  
file_path: sympy/sympy/physics/mechanics/method.py
imports: from abc import ABC, abstractmethod
label_desc: Use image node_id 9 for calling the _Methods obj's underlying member method code with example usage: obj._form_eoms() without return types