Added main function as entry point

tts.py

@@ -10,6 +10,10 @@ import scipy
 import numpy as np
 import IPython.display as ipd
 
+def main():
+    """
+    Defined starting point of source code.
+    """
 
     models, cfg, task = load_model_ensemble_and_task_from_hf_hub(
         "facebook/fastspeech2-en-ljspeech",
@@ -37,11 +41,8 @@ for line in lines:
         line = line.replace("(", ". ")
         line = line.replace(")", ". ")
         for x in line.split(". "):
-        # print(x)
             sentences.append(x.strip())
-        # print(sentences)
             sentences.append("<PAUSE>")
-        # print(sentences)
 
     # Synthesis text
     for text in sentences:
@@ -60,3 +61,6 @@ for text in sentences:
 
     full_wave_file = np.array(full_wave_file, dtype=np.float32)
     scipy.io.wavfile.write("test.wav", rate, full_wave_file)
+
+if __name__ == "__main__":
+    main()