Fixes for issue UnimplementedInterfaceMethod: Method getsupportedtypes is not defined

[kedarkhaire]

Fixes #384

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 86.68%. Comparing base (ac36569) to head (266b697). Report is 1 commits behind head on 4.x.

Additional details and impacted files

[](https://app.codecov.io/gh/apigee/apigee-client-php/pull/385?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apigee) ```diff @@ Coverage Diff @@ ## 4.x #385 +/- ## ========================================= Coverage 86.68% 86.68% Complexity 1737 1737 ========================================= Files 343 343 Lines 4220 4220 ========================================= Hits 3658 3658 Misses 562 562 ``` | [Flag](https://app.codecov.io/gh/apigee/apigee-client-php/pull/385/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apigee) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/apigee/apigee-client-php/pull/385/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apigee) | `86.68% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apigee#carryforward-flags-in-the-pull-request-comment) to find out more. | [Files with missing lines](https://app.codecov.io/gh/apigee/apigee-client-php/pull/385?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apigee) | Coverage Δ | | |---|---|---| | [...eX/Denormalizer/AppGroupMembershipDenormalizer.php](https://app.codecov.io/gh/apigee/apigee-client-php/pull/385?src=pr&el=tree&filepath=src%2FApi%2FApigeeX%2FDenormalizer%2FAppGroupMembershipDenormalizer.php&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apigee#diff-c3JjL0FwaS9BcGlnZWVYL0Rlbm9ybWFsaXplci9BcHBHcm91cE1lbWJlcnNoaXBEZW5vcm1hbGl6ZXIucGhw) | `93.33% <ø> (ø)` | | | [src/Api/Management/Query/StatsQueryNormalizer.php](https://app.codecov.io/gh/apigee/apigee-client-php/pull/385?src=pr&el=tree&filepath=src%2FApi%2FManagement%2FQuery%2FStatsQueryNormalizer.php&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apigee#diff-c3JjL0FwaS9NYW5hZ2VtZW50L1F1ZXJ5L1N0YXRzUXVlcnlOb3JtYWxpemVyLnBocA==) | `92.00% <ø> (ø)` | | | [src/Serializer/EntitySerializer.php](https://app.codecov.io/gh/apigee/apigee-client-php/pull/385?src=pr&el=tree&filepath=src%2FSerializer%2FEntitySerializer.php&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apigee#diff-c3JjL1NlcmlhbGl6ZXIvRW50aXR5U2VyaWFsaXplci5waHA=) | `85.48% <ø> (ø)` | |