# File lib/openstack/compute/connection.rb, line 258
    def update_flavor_extra_spec(flavor_id, flavor_extra_spec_key, new_value)
      data = JSON.generate(flavor_extra_spec_key => new_value)
      response = @connection.req('PUT', "/flavors/#{flavor_id}/os-extra_specs/#{flavor_extra_spec_key}", data: data)
      JSON.parse(response.body)
    end