fix temperature value zero bug

[icyxp]

[codecov[bot]]

Codecov Report

Merging #163 (7f1cf5d) into master (c34bc77) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #163   +/-   ##
=======================================
  Coverage   66.72%   66.72%           
=======================================
  Files          18       18           
  Lines         529      529           
=======================================
  Hits          353      353           
  Misses        136      136           
  Partials       40       40           

Impacted Files	Coverage Δ
chat.go	100.00% <ø> (ø)

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[sashabaranov]

Hey @icyxp, thank you for the PR! The removal of omitempty would not work for us, please refer to this discussion: https://github.com/sashabaranov/go-openai/issues/9