class_docstr: Reduced Plank's constant in numerical and symbolic form [1]_.
  
  Examples
  ========
  
      >>> from sympy.physics.quantum.constants import hbar
      >>> hbar.evalf()
      1.05457162000000e-34
  
  References
  ==========
  
  .. [1] https://en.wikipedia.org/wiki/Planck_constant
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code: def _latex(self, printer, *args):
      return r"\hbar"
  
file_path: sympy/sympy/physics/quantum/constants.py
imports: from sympy.core.numbers import NumberSymbol
  from sympy.core.singleton import Singleton
  from sympy.printing.pretty.stringpict import prettyForm
  import mpmath.libmp
label_desc: Use image node_id 5 for calling the HBar obj's underlying member method code with example usage: obj._latex(printer) and returns: str