[BUG] Using typescript-angular generator and generated service cannot add populate property with more complex structure like : {'populate[0]': 'dummy', 'populate[1]': 'dummy2'}).

⚠️ Important Notice

It only allows string, Making it with type any, it works, but would like generated code to be with any, with no additional modification by me. Could you review the issue.

Please differentiate the bug

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