class_docstr: Abstract base class for Mathieu functions.
  
  This class is meant to reduce code duplication.
class_docstr_tok: ["Abstract","base","class","for","Mathieu","functions",".","This","class","is","meant","to","reduce","code","duplication","."]
code: def _eval_conjugate(self):
      a, q, z = self.args
      return self.func(a.conjugate(), q.conjugate(), z.conjugate())
  
imports: from sympy.core.function import Function, ArgumentIndexError
  from sympy.functions.elementary.miscellaneous import sqrt
  from sympy.functions.elementary.trigonometric import sin, cos
label_desc: Use image node_id 1 for calling the MathieuBase obj's underlying member method code with example usage: obj._eval_conjugate() and returns: self