I am following the Python tutorial and at some point they talk about how the 1st statement of a function can be a String Literal. As far as the example goes, this String Lit
A string literal is simply a string given literally in the source code. Whether it is a docstring or another string does not matter. See the Python language documentation section on string literals for all the details, but you probably don't need these details now.
A few examples:
"abc"
'Guido'
r"""Norwegian Blue"""