text: function Edge(input, output, dest) {
  	this[input] = output;
  	this.dest = dest;
  	this.dest.incomingEdges.push(this);
  
  	this.equalsTo = edge => {
  		if (this.input === edge.input && this.dest.id === edge.dest.id) {
  			return true;
  		}
  		return false;
  	};
  }
  
  module.exports = Edge;
  