Full:
█
└─rlang:::f()
  ├─base::eval(quote(g()))
  │ └─base::eval(quote(g()))
  └─rlang:::g()
    ├─base::eval(quote(trace_back(e, bottom = 0)))
    │ └─base::eval(quote(trace_back(e, bottom = 0)))
    └─rlang::trace_back(e, bottom = 0)

Collapsed:
█
└─rlang:::f()
  ├─[ base::eval(...) ] with 1 more call
  └─rlang:::g()
    ├─[ base::eval(...) ] with 1 more call
    └─rlang::trace_back(e, bottom = 0)

Branch:
 ─rlang:::f()
 ─rlang:::g()
 ─rlang::trace_back(e, bottom = 0)
