AI-generated Key Takeaways
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          The UMPFormErrorCode enum lists error codes used when loading and showing forms. 
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          Error codes include UMPFormErrorCodeInternal for internal errors, UMPFormErrorCodeAlreadyUsed for forms already used, UMPFormErrorCodeUnavailable for unavailable forms, UMPFormErrorCodeTimeout for loading timeouts, and UMPFormErrorCodeInvalidViewController which is currently undocumented. 
UMPFormErrorCode
enum UMPFormErrorCode : NSInteger {}Error codes used when loading and showing forms.
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                  < Internal error. DeclarationSwift static var `internal`: FormError.Code { get }Objective-C UMPFormErrorCodeInternal = 5
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                  < Form was already used. DeclarationSwift static var alreadyUsed: FormError.Code { get }Objective-C UMPFormErrorCodeAlreadyUsed = 6
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                  < Form is unavailable. DeclarationSwift static var unavailable: FormError.Code { get }Objective-C UMPFormErrorCodeUnavailable = 7
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                  < Loading a form timed out. DeclarationSwift static var timeout: FormError.Code { get }Objective-C UMPFormErrorCodeTimeout = 8
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                  Undocumented DeclarationSwift static var invalidViewController: FormError.Code { get }Objective-C UMPFormErrorCodeInvalidViewController = 9