Design objects

Object class	Description	Command to create object collection
cell	Instance in the design; can be a hierarchical block or primitive library cells	get_cells
clock	Clock	get_clocks
design	Design	get_designs
lib	Library	get_libs
lib_cell	Cell in a logic library	get_lib_cells
lib_pin	Pin on a library cell	get_lib_pins
lib_timing_arc	Timing arc on a library cell	get_lib_timing_arcs
net	Net in the current design	get_nets
path_group	Group of paths for cost-function calculations and timing reports	get_path_groups
pin	Pin of a lower-level cell in the design; can be input, output, or inout(bidirectional)	get_pins
port	Port of the current design; can be input, output, or inout (bidirectional)	get_ports
timing_arc	Timing arc	get_timing_arcs
timing_path	Timing path	get_timing_paths