def add_edge_attributes(self, edge, attrs):
for attr in attrs:<EOL><INDENT>self.add_edge_attribute(edge, attr)<EOL><DEDENT>
Append a sequence of attributes to the given edge

@type  edge: edge
@param edge: One edge.

@type  attrs: tuple
@param attrs: Node attributes specified as a sequence of tuples in the form (attribute, value).