static @NotNull PermissionChecker always(final @NotNull TriState state) {
    requireNonNull(state);
    if (state == TriState.TRUE) return PermissionCheckers.TRUE;
    if (state == TriState.FALSE) return PermissionCheckers.FALSE;
    return PermissionCheckers.NOT_SET;
  }
Creates a {@link PermissionChecker} that always returns {@code state}.

@param state the state
@return a {@link PermissionChecker}
@since 4.8.0
api/src/main/java/net/kyori/adventure/permission/PermissionChecker.java