Who is granny ed in the book taking sides by Gary soto?

In the book "Taking Sides" by Gary Soto, Granny Ed is the grandmother of the main character, Lincoln Mendoza. She plays a significant role in Lincoln's life by providing support and guidance, especially when it comes to dealing with the challenges he faces on and off the Basketball court. Granny Ed is portrayed as a strong and loving figure who influences Lincoln's decisions and helps him navigate his world.