Usage:
represent style atom-spec

Represent changes the draw modes of the specified atoms (and the bonds connecting them) according to style. Style can be:

• wire (default) - wire representation
• stick - stick representation
• bs or b+s - ball-and-stick representation; ball radii equal the VDW radii multiplied by the ball scale factor
• sphere or cpk - sphere or CPK representation; sphere radii equal the VDW radii

See also: linewidth, bondrepr, ribbon, ribrepr, surface, surfrepr