Read and write graphs in GEXF format.
GEXF (Graph Exchange XML Format) is a language for describing complex network structures, their associated data and dynamics.
This implementation does not support mixed graphs (directed and undirected edges together).
||Read graph in GEXF format from path.|
||Write G in GEXF format to path.|
||Generate lines of GEXF format representation of G.|
||Relabel graph using “label” node keyword for node label.|