I can't find the gem on rubygems.org

[masasin]

$ bundle install
Fetching gem metadata from https://rubygems.org/........
Could not find gem 'ms_graph_rest' in rubygems repository https://rubygems.org/ or installed locally.

$ gem install ms_graph_rest
ERROR:  Could not find a valid gem 'ms_graph_rest' (>= 0) in any repository
ERROR:  Possible alternatives: graphist, grpc-rest, ms_paraphrase, msgraph, msgraph-api, msgraph-client, svg-graph-test