refactor: rename generateTransformationString to buildTransformationString for consistency

Author: manu4543

examples/test_helper.rb

@@ -13,15 +13,20 @@
 # Create some sample transformations (they can be empty for now since we're returning a fixed URL)
 transformations = [
   Imagekit::Models::Transformation.new(
-    height: 300,
-    width: 400,
+    height: 300.0,
+    width: 400.0,
     shadow: true
   )
 ]
 
 # Test all helper functions
 puts "Testing helper functions:"
 puts "1. buildURL: #{image_kit.helper.buildURL(transformations)}"
-puts "2. generateTransformationString: #{image_kit.helper.generateTransformationString(transformations)}"
+puts "2. buildTransformationString: #{image_kit.helper.buildTransformationString(transformations)}"
 puts "3. GetAuthenticationParameters: #{image_kit.helper.GetAuthenticationParameters}"
 puts "All helper functions are working!"
+
+image_kit.files.upload(
+  file: StringIO.new("https://www.example.com/public-url.jpg"),
+  file_name: "file-name.jpg"
+)

lib/imagekit/helpers/helper.rb

@@ -17,7 +17,7 @@ def buildURL(transformations)
       #
       # @param transformations [Array<Imagekit::Models::Transformation>] Array of transformation objects
       # @return [String] The transformation string (e.g., "w-400,h-300")
-      def generateTransformationString(transformations)
+      def buildTransformationString(transformations)
         # TODO: Implement actual transformation string generation
         # For now, return a fixed transformation string
         "w-400,h-300"

rbi/imagekit/helpers/helper.rbi

@@ -20,7 +20,7 @@ module Imagekit
           transformations: T::Array[Imagekit::Models::Transformation]
         ).returns(String)
       end
-      def generateTransformationString(transformations); end
+      def buildTransformationString(transformations); end
 
       # Gets authentication parameters for ImageKit requests
       sig do

sig/imagekit/helpers/helper.rbs

@@ -7,7 +7,7 @@ module Imagekit
       def buildURL: (Array[Imagekit::Models::Transformation] transformations) -> String
 
       # Generates transformation string from transformation objects
-      def generateTransformationString: (Array[Imagekit::Models::Transformation] transformations) -> String
+      def buildTransformationString: (Array[Imagekit::Models::Transformation] transformations) -> String
 
       # Gets authentication parameters for ImageKit requests
       def GetAuthenticationParameters: (?String? token) -> Hash[Symbol, (String | Integer)]