What does the author reveal about Sai Baba's direct role in the writing of the Sai Satcharitra in Chapter 49?

In Chapter 49, the author, Hemadpant, makes it abundantly clear that Sai Baba was the true author of the Satcharitra. He explains that he was merely an instrument. He states that if he ever forgot the narrative while writing, Sai would provide "the remembrance at the right time." He further claims that Sai Himself is "the composer and the writer" and that without His divine inspiration, the work would lack substance. The author concludes that the "merciful Sainath, entering into my mind, got His own book written," fulfilling the author's desires in the process. This shows that the book is considered a direct Leela of Sai, composed and written through the author.