---input---
f'''{d[0
]}'''

---tokens---
'f'           Literal.String.Affix
"'''"         Literal.String.Single
'{'           Literal.String.Interpol
'd'           Name
'['           Punctuation
'0'           Literal.Number.Integer
'\n'          Text

']'           Punctuation
'}'           Literal.String.Interpol
"'''"         Literal.String.Single
'\n'          Text
