library /*isNonNullableByDefault*/;
import self as self;
import "dart:core" as core;

abstract class ChannelA extends core::Object {
  synthetic constructor •() → self::ChannelA
    ;
  abstract get channel() → self::ChannelB?;
}
abstract class ChannelB extends core::Object {
  synthetic constructor •() → self::ChannelB
    ;
  abstract get activeFrom() → self::ActiveFrom?;
}
abstract class ActiveFrom extends core::Object {
  synthetic constructor •() → self::ActiveFrom
    ;
  abstract method toLocal() → core::DateTime;
}
static method method(self::ChannelA channel) → void
  ;