Trying to make a simple scatter plot on R studio. However, this is the error which comes up : Can’t add ggsave("Plot1.png") to a <ggplot> object

Here is my code :

library(tidyverse)
data()
names(mpg)

mpg %>%
filter(hwy < 35) %>%
ggplot(aes(x=displ,
y=hwy,
colour = drv)) +
geom_point() +
geom_smooth(method = lm,
se = F) +
theme_minimal() +
ggsave(
"Plot1.png")

Please let me know as to what may be wrong here! thank you!