flatbuffers/tests/namespace_test/namespace_test1.fbs

namespace NamespaceA.NamespaceB;

table TableInNestedNS
{
    foo:int;
}

union UnionInNestedNS {
    TableInNestedNS,
}

enum EnumInNestedNS:byte
{
	A, B, C
}

struct StructInNestedNS
{
    a:int;
	b:int;
}