I am trying to use the "if" statement in a calculated field. I know if i do something like this: if(field_1 = "test", "field_1 says test", "field_1 does not say test"), it will work if field_1 is a text field and says "test". However, I am trying to use a signature field in the if statement but cannot figure out how to check if it is signed or not. I've tried doing things like if(signature != "", "signed!", "unsigned") but it does not work. So how can i check if a signature field is signed?
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