fix: removed duplicate declaration of Entities

[laljikanjareeya]

Fixes #523

• Ensure the tests and linter pass
• Code coverage does not decrease (if any source code was changed)
• Appropriate docs were updated (if necessary)

[codecov]

Codecov Report

Merging #524 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #524   +/-   ##
=======================================
  Coverage   98.25%   98.25%           
=======================================
  Files           6        6           
  Lines         745      745           
  Branches      175      175           
=======================================
  Hits          732      732           
  Misses          2        2           
  Partials       11       11

Impacted Files	Coverage Δ
src/entity.ts	98.73% <ø> (ø)	⬆️
src/request.ts	99.54% <ø> (ø)	⬆️

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