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+# PG Rendering API
+
+This is the basic documentation for a renderer wrapper around the pg translate function. 
+The goal is to create a module/class that can be used throughout webwork as well as more standalone services that render PG problems. 
+
+The hope is also to pass into the function a minimal number of flags/parameters/arguments that is needed for rendering as well as 
+the flexibility for the function to handle any of the current situations, especially the current `webwork2` platform as well as other 
+services that are currently being created. 
+
+
+```
+function render {
+  my ($problem, $input, $envir, $flags) = @_; 
+
+
+}
+```
+
+The inputs for the function are
+
+* __problem__: a problem from either the OPL, a local directory or as a string.  It should have the following fields
+  - `global`: boolean whether or not the problem is global (from OPL)
+  - `path`: string of the path (either local or global)
+  - `seed`: integer of the problem seed
+  - `source`: string as a source of a problem. 
+  - `course_dir`(if a problem is local)
+
+* __input__: a hash of the input to the problem.  Basically the current `formFields` variable.
+
+* __envir__: a hash of any needed environmental flags.  See [Environment variables wiki page](https://github.com/openwebwork/PG_interface_docs/wiki/PG-Renderer-Environmental-Variables) page for more information.
+
+* __flags__: a hash of additional flags needed for the problem. See the [Processing Flags](https://github.com/openwebwork/PG_interface_docs/wiki/PG-renderer-processing-flags) page for more information.
+
+
+The output of the function is a hash very similar to the current hash:
+
+* `head_text`
+* `post_header_text`
+* `body_text`
+* `answers`
+* `result`
+* `state`
+* `errors`
+* `warnings`
+* `flags`
+* `pgcore`