Optional return types in pyg::sampler::subgraph

[rusty1s]

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[codecov-commenter]

Codecov Report

Merging #40 (e0a2931) into master (1a00013) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master       #40   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            7         7           
  Lines          115       116    +1     
=========================================
+ Hits           115       116    +1     

Impacted Files	Coverage Δ
pyg_lib/csrc/sampler/cpu/subgraph_kernel.cpp	100.00% <100.00%> (ø)
pyg_lib/csrc/sampler/subgraph.cpp	100.00% <100.00%> (ø)

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