example provided with documentation ignored for type of boolean

[drewnichols]

I have an entity defined as follows which provides and example value of false

module Entities
  class OrderEntity < Grape::Entity
    expose :pre_order,
           documentation: {
             type: Grape::API::Boolean,
             desc: 'true, if this order is a pre-order, otherwise false.',
             example: false
           }
  end
end

When the swagger file is generated it seems to be ignoring the example and returns nothing.

"OrderEntity": {
  "type": "object",
  "properties": {
    "pre_order": {
      "type": "boolean",
      "description": "true, if this order is a pre-order, otherwise false."
    }
  }
}

I should note that if I change the example to a string of "false" it does return the string correctly.

[drewnichols]

After fixing this I noticed that when we provide a default value in the documentation of false it suffers from the same problem

[kzaitsev]

Hello, grape-swagger-entity 0.4.0 was released.