`sig
val pull_url :
OpamTypes.package ->
OpamTypes.dirname ->
string option ->
OpamTypes.address ->
OpamTypes.generic_file OpamTypes.download OpamProcess.job
val pull_repo : OpamTypes.repository -> unit OpamProcess.job
val pull_archive :
OpamTypes.repository ->
OpamTypes.filename ->
OpamTypes.filename OpamTypes.download OpamProcess.job
val revision :
OpamTypes.repository -> OpamTypes.version option OpamProcess.job
end`