PR: Add get_pid method to PTY struct

[andfoy]

No description provided.

[codecov-commenter]

Codecov Report

Merging #6 (22521bf) into main (fd6be6c) will increase coverage by 0.45%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main       #6      +/-   ##
==========================================
+ Coverage   45.16%   45.62%   +0.45%     
==========================================
  Files           9        9              
  Lines        1676     1690      +14     
==========================================
+ Hits          757      771      +14     
  Misses        919      919              

Flag	Coverage Δ
unittests	45.62% <100.00%> (+0.45%)	⬆️

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Impacted Files	Coverage Δ
src/pty.rs	67.08% <100.00%> (+1.29%)	⬆️
src/pty/base.rs	73.61% <100.00%> (+0.37%)	⬆️
src/pty/conpty/pty_impl.rs	71.62% <100.00%> (+0.29%)	⬆️
src/pty/winpty/pty_impl.rs	79.16% <100.00%> (+0.37%)	⬆️
tests/conpty.rs	50.68% <100.00%> (+0.34%)	⬆️
tests/winpty.rs	100.00% <100.00%> (ø)

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