[Python] I need another way to fill a shape other than begin_fill() and end_fill()

I want to know if Python Turtle has a fill option other than begin_fill() and end_fill(), because my project is to draw Spongebob. Spongebob's body has fractions of ovals on its borders, so I developed a code to draw the ovals, but now I can't fill bob's body. photo of the output I tried using begin_fill() and end_fill(), but it gave me an unusual pattern that didn't fill the shape.
here is the code i used to creat the arcs, it also uses math library

def arc(a, b, angleS=None,angleE=None,pen=None):
if pen == None:
pen=turtle.Turtle()
startx=pen.pos()[0]
starty=pen.pos()[1]
try:
new_angleS = math.radians(angleS) * 0.875 * (180 / math.pi)
new_angleE = math.radians(angleE) * 0.875 * (180 / math.pi)
except:
new_angleS = 0
new_angleE = 315
for i in range(int(new_angleS),int(new_angleE)+1):
if i == int(new_angleS):
pen.up()
else:
pen.down()
pen.setposition(startx+a*math.cos(i/50), starty+b*math.sin(i/50))




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