static String encodeRaw(TypeMirror type) {
    StringBuilder sb = new StringBuilder();
    return type.accept(RAW_ENCODING_TYPE_VISITOR, sb).toString();
  }
Like {@link #encode}, except that only the raw type is encoded. So if the given type is {@code
java.util.List<java.lang.Integer>} the result will be {@code `java.util.List`}.
value/src/main/java/com/google/auto/value/processor/TypeEncoder.java