The author used the word 'pouring' is to let the reader imagine what the snake is doing.
What is imagery?
This is a visually descriptive or figurative language especially in a literary work.
This action of 'pouring' describes the snake's action because the snake is in the basket and the decision used means that the snake is coming in and out of the basket.
Read more about imagery here:
https://brainly.com/question/25938417
