class_docstr: Class Duration in development.
class_docstr_tok: ["Class","Duration","in","development","."]
docstr: Return the negative value of this Duration.
docstr_tok: ["Return","the","negative","value","of","this","Duration","."]
code: def __neg__(self):
      """Return the negative value of this Duration."""
      return Duration(self._frame, -self._seconds)
  
file_path: matplotlib/lib/matplotlib/testing/jpl_units/Duration.py
imports: import functools
  import operator
  from matplotlib import _api
label_desc: Use image node_id 4 for calling the Duration obj's underlying member method code with example usage: obj.__neg__() and returns: Duration