Use this if you are using igraph from R
| with_igraph_opt {igraph} | R Documentation | 
Run code with a temporary igraph options setting
with_igraph_opt(options, code)
| options | A named list of the options to change. | 
| code | The code to run. | 
The result of the code.
Other igraph options: 
igraph_options()
with_igraph_opt(
  list(sparsematrices = FALSE),
  make_ring(10)[]
)
igraph_opt("sparsematrices")