add function integration, tests and docs

docs/source/conf.py

@@ -34,7 +34,8 @@ release = '2019.5.19'
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
 # ones.
 extensions = [
-  'sphinx.ext.autodoc'
+  'sphinx.ext.autodoc',
+  'sphinx.ext.viewcode',
 ]
 
 # Add any paths that contain templates here, relative to this directory.
@@ -52,6 +53,7 @@ exclude_patterns = []
 # a list of builtin themes.
 #
 html_theme = 'alabaster'
+pygments_style = 'solarized-dark'
 
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,
@@ -66,6 +68,8 @@ html_theme_options = {
   'base_bg': '#292b2e',
   'base_text': '#b2b2b2',
   'body_text': '#b2b2b2',
+  'viewcode_target_bg': '#292b2e',
+  'pre_bg': '#25272c',
   'code_text': '#b2b2b2',
   'code_hover': 'transparent',
   'sidebar_text': '#b2b2b2',
@@ -76,6 +80,6 @@ html_theme_options = {
   'highlight_bg': '#444F65',
   'xref_bg': 'transparent',
   'xref_border': 'transparent',
-  'seealso_bg': '#3c3c3c',
+  'seealso_bg': '#25272c',
   'seealso_border': '#2C2C2C',
 }