Edm.Boolean error in Odata Service

Hi Experts,

I developed 1 O-data Service, with function import.

Import contains 1 parameter, of Edm.Boolean type.

When I am trying to execute my Service in Gateway Client, I am getting below Error.

"Invalid Function Import parameter type 'E_full'. Expected Type is 'Edm.Boolean'.

Screen Shots from service

Request you to please help me out.

-Regards

Rohit