code: function buildNetworkAclEntry(
    name,
    CidrBlock,
    { Egress = false, Protocol = -1, RuleAction = 'allow', RuleNumber = 100 } = {},
  ) {
    const direction = Egress ? 'Egress' : 'Ingress';
    const cfName = `${name}${direction}${RuleNumber}`;
    return {
      [cfName]: {
        Type: 'AWS::EC2::NetworkAclEntry',
        Properties: {
          CidrBlock,
          NetworkAclId: {
            Ref: name,
          },
          Egress,
          Protocol,
          RuleAction,
          RuleNumber,
        },
      },
    };
  }
docs: Build a Network ACL entry
  
  @param {String} name
  @param {String} CidrBlock
  @param {Object} params
  @return {Object}