length    = 5
upper     = LUMEN
lower     = lumen
s[0]      = L
s[-1]     = n
tab:	after
quote: "quoted"
dollar: $5.00
unicode: 🚀 ❤
parts     = ["a", "b", "c", "d"]
joined    = a-b-c-d
trimmed   = 'hi'
contains  = true
replaced  = a+b+c
starts    = true
repeat    = ababab
sentence  = the quick brown fox
