write R code using ggplot or the ggraph library using these variables to create a heatmap

Class 'igraph' hidden list of $10$

$ : num $28$

$ : logi FALSE

$ : num $[1$:$344]21212121212121252221...$

$ : num $[1$:$344]16220310611212119...$

$ : NULL

$ : NULL

$ : NULL

$ : NULL

$ :List of $4$

$..$$ : num $[1$:$3]101$

$..$$ : Named list$()$

$..$$ :List of $3$

$....$$ name : chr $[1$:$28]$ "All" "BIANCA" "BRABANTIO" "CASSIO" $...$

$....$$ NumLines: int $[1$:$28]234140279273887124535...$

$....$$ degree : num $[1$:$28]1818243814482234228...$

$..$$ :List of $1$

$....$$ n: num $[1$:$344]7364211111...$

$ :