lib/graphviz/graph.rb
def graph_format(options)
			if @graph
				'subgraph'
			else
				options[:format] || 'digraph'
			end
		end
# Initialize the graph with the specified unique name.
Initialize the graph with the specified unique name.
Initialize the graph with the specified unique name .
def graph_format(options)
			if @graph
				'subgraph'
			else
				options[:format] || 'digraph'
			end
		end
def graph_format ( options ) if @graph 'subgraph' else options [ :format ] || 'digraph' end end
Initialize the graph with the specified unique name.
Initialize the graph with the specified unique name .
options