What all of those org-babel functions do

For the lazy org users like myself who want to know what the functions
listed here do, just evaluate the one you want:

(describe-function 'org-babel-execute-src-block)
(describe-function 'org-babel-open-src-block-result)
(describe-function 'org-babel-load-in-session)
(describe-function 'org-babel-pop-to-session)
(describe-function 'org-babel-previous-src-block)
(describe-function 'org-babel-next-src-block)
(describe-function 'org-babel-execute-maybe)
(describe-function 'org-babel-open-src-block-result)
(describe-function 'org-babel-expand-src-block)
(describe-function 'org-babel-goto-src-block-head)
(describe-function 'org-babel-goto-named-src-block)
(describe-function 'org-babel-goto-named-result)
(describe-function 'org-babel-execute-buffer)
(describe-function 'org-babel-execute-subtree)
(describe-function 'org-babel-demarcate-block)
(describe-function 'org-babel-tangle)
(describe-function 'org-babel-tangle-file)
(describe-function 'org-babel-check-src-block)
(describe-function 'org-babel-insert-header-arg)
(describe-function 'org-babel-load-in-session)
(describe-function 'org-babel-lob-ingest)
(describe-function 'org-babel-view-src-block-info)
(describe-function 'org-babel-switch-to-session-with-code)
(describe-function 'org-babel-sha1-hash)
(describe-function 'org-babel-describe-bindings)
(describe-function 'org-babel-do-key-sequence-in-edit-buffer)

There are some very special functions in there!