I am not sure how to use mergeE and mergeV using gremlin_python

For vertex/node
g.merge_v({T.id: node.id}).option(
            Merge.on_create, {
                T.label: node.type.value,
                'name': node.name
            }
        ).option(
            Merge.on_match, {
                'name': node.name
            }
        ).property("full_name": node.full_name) \
        .next()

For edge
g.merge_e({T.label: edge.relationship.value,
                                    Direction.from_: edge.from_.id,
                                    Direction.to: edge.to_.id})\
                .option(Merge.on_create, {
                    T.label: edge.relationship.value
                }) \
                .option(Merge.on_match, {
                    'updated': "true"
                }).property("description": edge.description).next()