Add missing public functions and classes to the docs

Author: Cito

docs/modules/execution.rst

@@ -32,6 +32,8 @@ Execution
 
 .. autoclass:: MiddlewareManager
 
+.. autofunction:: get_argument_values
+
 .. autofunction:: get_directive_values
 
 .. autofunction:: get_variable_values

docs/modules/type.rst

@@ -13,6 +13,7 @@ Definition
 Predicates
 ^^^^^^^^^^
 
+.. autofunction:: is_abstract_type
 .. autofunction:: is_composite_type
 .. autofunction:: is_enum_type
 .. autofunction:: is_input_object_type
@@ -25,6 +26,8 @@ Predicates
 .. autofunction:: is_nullable_type
 .. autofunction:: is_object_type
 .. autofunction:: is_output_type
+.. autofunction:: is_required_argument
+.. autofunction:: is_required_input_field
 .. autofunction:: is_scalar_type
 .. autofunction:: is_type
 .. autofunction:: is_union_type
@@ -116,13 +119,20 @@ Predicates
 .. autofunction:: is_directive
 .. autofunction:: is_specified_directive
 
+Assertions
+^^^^^^^^^^
+
+.. autofunction:: assert_directive
+
 Definitions
 ^^^^^^^^^^^
 
 .. autoclass:: GraphQLDirective
 .. autoclass:: GraphQLIncludeDirective
 .. autoclass:: GraphQLSkipDirective
 .. autoclass:: GraphQLDeprecatedDirective
+.. autoclass:: GraphQLSpecifiedByDirective
+.. autoclass:: GraphQLOneOfDirective
 
 .. data:: specified_directives
 
@@ -172,6 +182,10 @@ Definitions
 .. autoclass:: GraphQLInt
 .. autoclass:: GraphQLString
 
+.. data:: specified_scalar_types
+
+   A mapping containing all scalar types from the GraphQL specification
+
 .. data:: GRAPHQL_MAX_INT
 
    Maximum possible Int value as per GraphQL Spec (32-bit signed integer)
@@ -189,6 +203,11 @@ Predicates
 
 .. autofunction:: is_schema
 
+Assertions
+^^^^^^^^^^
+
+.. autofunction:: assert_schema
+
 Definitions
 ^^^^^^^^^^^
 

docs/modules/validation.rst

@@ -33,6 +33,11 @@ Rules
 
    A tuple with all validation rules defined by the GraphQL specification
 
+.. data:: recommended_rules
+
+   A tuple with validation rules that are not part of the GraphQL specification,
+   but recommended to be used, like limiting the depth of introspection queries
+
 **Spec Section: "Executable Definitions"**
 
 .. autoclass:: ExecutableDefinitionsRule
@@ -151,3 +156,8 @@ Rules
 .. autoclass:: UniqueArgumentDefinitionNamesRule
 .. autoclass:: UniqueDirectiveNamesRule
 .. autoclass:: PossibleTypeExtensionsRule
+
+**Custom validation rules (not part of the specification)**
+
+.. autoclass:: NoDeprecatedCustomRule
+.. autoclass:: NoSchemaIntrospectionCustomRule