diff --git a/data_models/lib/imma1_d701/code_tables/ICOADS.C99.FORM.json b/data_models/lib/imma1_d701/code_tables/ICOADS.C99.FORM.json
index fc959fe60a7827cc2f3e2f0c0ef12c3fc48bfd72..ca2d864933d3f3502c75b9553d3875cf55c8fd68 100644
--- a/data_models/lib/imma1_d701/code_tables/ICOADS.C99.FORM.json
+++ b/data_models/lib/imma1_d701/code_tables/ICOADS.C99.FORM.json
@@ -1,8 +1,8 @@
 {
 	" 1": "daily",
 	" 2": "reports more than once a day",
-        "1 ": "daily",
-        "2 ": "reports more than once a day",
-        "01": "daily",
-        "02": "reports more than once a day"
+    "1 ": "daily",
+    "2 ": "reports more than once a day",
+    "01": "daily",
+    "02": "reports more than once a day"
 }
diff --git a/docs/conf.py b/docs/conf.py
index 1494bf2d03ceb2034d68ecafd2264d578a6d3c9e..a0a850858f3c2d58d90f3d0c5e5398ca0f89ad37 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -30,13 +30,22 @@ release = 'v1.3'
 # Add any Sphinx extension module names here, as strings. They can be
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
 # ones.
-extensions = []
+# extensions = []
+
+# extensions.append('autoapi.extension')
+extensions = ['sphinx.ext.autodoc',
+              'sphinx.ext.autosummary',
+              'sphinx.ext.viewcode',
+              'autoapi.extension',
+              'sphinx.ext.napoleon',
+              'sphinx_autodoc_typehints']
 
-extensions.append('autoapi.extension')
 
 autoapi_type = 'python'
 autoapi_dirs = ['../']
 add_module_names = False
+autoapi_keep_files = False
+autodoc_typehints = "description"
 
 #autoapi_options = ['members', 'undoc-members', 'private-members']
 autoapi_options = ['members', 'undoc-members', 'private-members', 'show-inheritance',
diff --git a/docs/requirements.txt b/docs/requirements.txt
index b0c76dbb8444d6125f05d483c44b8ed7210f329f..a5746f62cfa89d7cffcf6b82dd47d5832f55f833 100755
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -3,3 +3,4 @@
 sphinx==3.5.4
 sphinx-autoapi==1.8.0
 sphinx-rtd-theme==0.5.2
+sphinx-autodoc-typehints
\ No newline at end of file