---input---
b'\\ \n \x12 \777 \u1234 \U00010348 \N{Plus-Minus Sign}'

---tokens---
'b'           Name
"'"           Literal.String
'\\\\'        Literal.String.Escape
' '           Literal.String
'\\n'         Literal.String.Escape
' '           Literal.String
'\\x12'       Literal.String.Escape
' '           Literal.String
'\\777'       Literal.String.Escape
' '           Literal.String
'\\u1234'     Literal.String.Escape
' '           Literal.String
'\\U00010348' Literal.String.Escape
' '           Literal.String
'\\N{Plus-Minus Sign}' Literal.String.Escape
"'"           Literal.String
'\n'          Text.Whitespace