how to change the shape of a shape in turtle code example

Example 1: how to draw shape square in python turtle

#Python program to draw color filled square in turtle programming
import turtle
 
t = turtle.Turtle()
t.fillcolor('blue')
t.begin_fill()
for i in range(4):
  t.forward(150)
  t.right(90)
t.end_fill()

Example 2: how to change turtle shape in python

import turtle as turtle
turtle.shape("arrow")#can be many shapes