I think it's a larger problem that defaults in standard libraries are rarely understood. For python OR for C++. I'm asking to the larger Hacker News community

I think it's a larger problem that defaults in standard libraries are rarely understood. For python OR for C++. I'm asking to the larger Hacker News community here, how do you illustrate the dependencies of a standard library API call without making it more complicated? Syntax is nothing, understanding is everything.