Fix imports (#2845)

notebooks/dataset_analysis/PhonemeCoverage.ipynb

@@ -49,9 +49,9 @@
    "outputs": [],
    "source": [
     "# import stuff\n",
-    "from TTS.utils.io import load_config\n",
-    "from TTS.tts.datasets.formatters import load_tts_samples\n",
-    "from TTS.tts.utils.text import phoneme_to_sequence, sequence_to_phoneme\n",
+    "from TTS.config import load_config\n",
+    "from TTS.tts.datasets import load_tts_samples\n",
+    "from TTS.tts.utils.text.tokenizer import TTSTokenizer\n",
     "from tqdm import tqdm\n",
     "from matplotlib import pylab as plt\n",
     "from multiprocessing import Pool, cpu_count\n",