graph_from_adjacency_matrix not defined in Julia

[ZhouHaobang]

My code:

julia> G = ZZ[0 0; 1 0]
julia> graph_from_adjacency_matrix(Directed, G)

ERROR: UndefVarError: graph_from_adjacency_matrix not defined
Stacktrace:
[1] top-level scope
@ REPL[61]:1

[simonbrandhorst]

It works for me.
graph_from_adjacency_matrix is an Oscar method. Did you load Oscar?

using Oscar