fix Send function annotation

[PzaThief]

This update is for Indent and usage annotation error

[codecov]

Codecov Report

Merging #537 (8eb029a) into master (3d08b36) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #537   +/-   ##
=======================================
  Coverage   96.69%   96.69%           
=======================================
  Files          10       10           
  Lines        1330     1330           
=======================================
  Hits         1286     1286           
  Misses         26       26           
  Partials       18       18           

Impacted Files	Coverage Δ
request.go	97.81% <ø> (ø)

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[jeevatkm]

@PzaThief I'm sorry for the delayed attention on the PR. Thank you of your contribution, appreciated.
It seems this PR is duplicate of already existing PR #528 so I'm closing it.