Split ErrorClass to separate File (#913)

* Split Error to seperate file to ensure its accessible via Rails console by default

* Fix Linting issue

---------

Co-authored-by: Rishi J <[email protected]>

Author: rishirajkumar97

lib/langchain/output_parsers/base.rb

@@ -28,15 +28,4 @@ def get_format_instructions
       raise NotImplementedError
     end
   end
-
-  class OutputParserException < StandardError
-    def initialize(message, text)
-      @message = message
-      @text = text
-    end
-
-    def to_s
-      "#{@message}\nText: #{@text}"
-    end
-  end
 end

lib/langchain/output_parsers/output_parser_exception.rb

@@ -0,0 +1,10 @@
+class Langchain::OutputParsers::OutputParserException < StandardError
+  def initialize(message, text)
+    @message = message
+    @text = text
+  end
+
+  def to_s
+    "#{@message}\nText: #{@text}"
+  end
+end