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

static method main() → dynamic {
  core::print("" as{ForNonNullableByDefault} core::String);
  core::print(1 as{ForNonNullableByDefault} core::int);
  core::print(1.0 as{ForNonNullableByDefault} core::double);
  core::print("" is{ForNonNullableByDefault} core::String);
  core::print("" is{ForNonNullableByDefault} core::int);
  core::print("" is{ForNonNullableByDefault} core::double);
  core::print(1 is{ForNonNullableByDefault} core::String);
  core::print(1 is{ForNonNullableByDefault} core::int);
  core::print(1 is{ForNonNullableByDefault} core::double);
  core::print(1.0 is{ForNonNullableByDefault} core::String);
  core::print(1.0 is{ForNonNullableByDefault} core::int);
  core::print(1.0 is{ForNonNullableByDefault} core::double);
}