return a string representing this treegraph . by default , the nodes of the treegraph are printed in lispy parenthesized format , with one node per line , indented according to depth . concode_field_sep Map<Integer,TreeGraphNode> indexMap concode_elem_sep TreeGraphNode root concode_elem_sep long serialVersionUID concode_field_sep TreeGraphNode getNodeByIndex concode_elem_sep Collection<TreeGraphNode> getNodes concode_elem_sep TreeGraphNode root concode_elem_sep void main concode_elem_sep void addNodeToIndexMap
String function ( ) { return root . toPrettyString ( 0 ) . substring ( 1 ) ; }