pub(crate) fn unit_seq_number(&self) -> Option<u64> {
        match self {
            Vertex::Unit(swunit) => Some(swunit.wire_unit().seq_number),
            _ => None,
        }
    }
/// Returns the seq number of this vertex (if it is a unit).
Returns the seq number of this vertex (if it is a unit).
Returns the seq number of this vertex ( if it is a unit ) .
pub(crate) fn unit_seq_number(&self) -> Option<u64> {
        match self {
            Vertex::Unit(swunit) => Some(swunit.wire_unit().seq_number),
            _ => None,
        }
    }
pub ( crate ) fn unit_seq_number ( & self ) -> Option < u64 > { match self { Vertex :: Unit ( swunit ) => Some ( swunit . wire_unit ( ) . seq_number ) , _ => None , } }
Returns the seq number of this vertex (if it is a unit).
Returns the seq number of this vertex ( if it is a unit ) .
&self
&self