How to generate random phone number on Postman?

How to generate random phone number (Specific Canadian city phone number) on Postman, I have this part of code in Python. I need just to format it to use it in Postman script.

def phn():
p=list('0000000000')
p[0] = str(random.randint(5,5))
for i in [1,2,6,7,8]:
    p[i] = str(random.randint(0,9))
for i in [3,4]:
    p[i] = str(random.randint(0,9))
if p[3]==p[4]==0:
    p[2]=str(random.randint(0,9))
else:
    p[2]=str(random.randint(4,4))
n = range(10)
if p[6]==p[7]==p[8]:
    n = (i for i in n if i!=p[6])
p[1] = str(random.randint(1,1))
p = ''.join(p)
return p[:3] + p[3:6] + p[6:]