class_docstr: A fermionic operator that satisfies {c, Dagger(c)} == 1.
  
  Parameters
  ==========
  
  name : str
      A string that labels the fermionic mode.
  
  annihilation : bool
      A bool that indicates if the fermionic operator is an annihilation
      (True, default value) or creation operator (False)
  
  Examples
  ========
  
  >>> from sympy.physics.quantum import Dagger, AntiCommutator
  >>> from sympy.physics.quantum.fermion import FermionOp
  >>> c = FermionOp("c")
  >>> AntiCommutator(c, Dagger(c)).doit()
  1
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code: def is_annihilation(self):
      return bool(self.args[1])
  
imports: from sympy.core.numbers import Integer
  from sympy.core.singleton import S
  from sympy.physics.quantum import Operator
  from sympy.physics.quantum import HilbertSpace, Ket, Bra
  from sympy.functions.special.tensor_functions import KroneckerDelta
label_desc: Use image node_id 2 for calling the FermionOp obj's underlying member method code with example usage: obj.is_annihilation() and returns: bool