RegularElement constructor Null safety

RegularElement(
  1. Token lt,
  2. Identifier tagName,
  3. Iterable<Attribute> attributes,
  4. Token gt,
  5. Iterable<ElementChild> children,
  6. Token lt2,
  7. Token slash,
  8. Identifier tagName2,
  9. Token? gt2
)

Implementation

RegularElement(this.lt, this.tagName, this.attributes, this.gt, this.children,
    this.lt2, this.slash, this.tagName2, this.gt2);