Support custom generator for ResponseDynamic

[k1LoW]

No description provided.

[github-actions]

Code Metrics Report

	main (c23bd64)	#36 (ca75c4f)	+/-
Coverage	76.3%	76.9%	+0.6%
Code to Test Ratio	1:0.3	1:0.3	+0.0
Test Execution Time	25s	27s	+2s

Details

  |                     | main (c23bd64) | #36 (ca75c4f) |  +/-  |
  |---------------------|----------------|---------------|-------|
+ | Coverage            |          76.3% |         76.9% | +0.6% |
  |   Files             |              2 |             3 |    +1 |
  |   Lines             |            575 |           589 |   +14 |
+ |   Covered           |            439 |           453 |   +14 |
+ | Code to Test Ratio  |          1:0.3 |         1:0.3 |  +0.0 |
  |   Code              |           2014 |          2062 |   +48 |
+ |   Test              |            598 |           684 |   +86 |
- | Test Execution Time |            25s |           27s |   +2s |

Code coverage of files in pull request scope (77.4% → 78.0%)

Files	Coverage	+/-
dynamic.go	83.3%	+83.3%
grpcstub.go	77.4%	-0.0%

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Reported by octocov