excel - Remove picture in EPPlus -

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using eplus, how remove exiting picture worksheet? don't see "remove" method on drawings collection.

exceldrawings has remove method:

example: sheet.drawings.remove("image1");

    //     // summary:     //     removes drawing.     //     // parameters:     //   drawing:     //     drawing     public void remove(exceldrawing drawing);     //     // summary:     //     removes drawing.     //     // parameters:     //   index:     //     index of drawing     public void remove(int index);     //     // summary:     //     removes drawing.     //     // parameters:     //   name:     //     name of drawing     public void remove(string name);

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