Bindings.Libgit2.Trace
type C'git_trace_level_t
c'GIT_TRACE_NONE
c'GIT_TRACE_FATAL
c'GIT_TRACE_ERROR
c'GIT_TRACE_WARN
c'GIT_TRACE_INFO
c'GIT_TRACE_DEBUG
c'GIT_TRACE_TRACE
type C'git_trace_callback