Function isRadialGradientFill

isRadialGradientFill(value: unknown): value is RadialGradientFill
RadialGradientFill type guard.

Use to verify that an unknown object is an instance of RadialGradientFill.

Returns
Boolean indicating if value is a RadialGradientFill
Parameters
- value: unknown
  
  Object to check
Returns value is RadialGradientFill