visitDirective method
Implementation
@override
StringSink visitDirective(Directive spec, [StringSink? output]) {
  // Always write import/export directives to a separate buffer.
  return super.visitDirective(spec, _writeImports);
}@override
StringSink visitDirective(Directive spec, [StringSink? output]) {
  // Always write import/export directives to a separate buffer.
  return super.visitDirective(spec, _writeImports);
}