[breaking] Replace optional stripe.elements mode params with discriminated union #756
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Summary & motivation
Updates
StripeElementsOptionsModeto use a discriminated union onmodefor better type safety around conditionally required parametersamountandcurrency. See the updated tests for examples!This is a breaking change because these type changes are not backwards compatible, although no behavior has actually changed (the types are just more accurate).
Testing & documentation
Added valid and invalid test cases, and fixed a valid test case that was not actually valid but was caught by this change.