val conversion_name : Ppx_core.stringThe simplest of all the extensions can only see atoms (leafs in the conversion type, for example a string), and records or recursive types that need to be recursively processed
val function_name : Ppx_core.string Ppx_core.option ‑> Ppx_core.stringval merge_recursive : Ppx_core.Location.t ‑> field_name:Ppx_core.string ‑> tp:Ppx_core.core_type ‑> Ppx_core.expression ‑> Ppx_core.expressionval unsupported_type_error_msg : name:Ppx_core.string ‑> Ppx_core.stringval atoms : simple_processorval recursive : recursive_processor