adds stub API docs in a single file (#46663)

* adds stub API docs in a single file

docs/docsite/rst/api/index.rst

@@ -0,0 +1,103 @@
+:orphan:
+
+*************************
+Ansible API Documentation
+*************************
+
+The Ansible API is under construction. These stub references will be documented in future.
+
+.. contents::
+   :local:
+
+Attributes
+==========
+
+.. py:attribute:: AnsibleModule.params
+
+The parameters accepted by the module.
+
+.. py:attribute:: ansible.module_utils.basic.ANSIBLE_VERSION
+
+.. py:attribute:: ansible.module_utils.basic.SELINUX_SPECIAL_FS
+
+Deprecated in favor of ansibleModule._selinux_special_fs.
+
+.. py:attribute:: AnsibleModule.ansible_version
+
+.. py:attribute:: AnsibleModule._debug
+
+.. py:attribute:: AnsibleModule._diff
+
+.. py:attribute:: AnsibleModule.no_log
+
+.. py:attribute:: AnsibleModule._selinux_special_fs
+
+(formerly ansible.module_utils.basic.SELINUX_SPECIAL_FS)
+
+.. py:attribute:: AnsibleModule._syslog_facility
+
+.. py:attribute:: self.playbook
+
+.. py:attribute:: self.play
+
+.. py:attribute:: self.task
+
+.. py:attribute:: sys.path
+
+
+Classes
+=======
+
+.. py:class:: ansible.module_utils.basic.AnsibleModule
+
+The basic utilities for AnsibleModule.
+
+.. py:class:: AnsibleModule
+
+The main class for an Ansible module.
+
+
+Functions
+=========
+
+.. py:function:: ansible.module_utils.basic._load_params()
+
+Load parameters.
+
+
+Methods
+=======
+
+.. py:method:: AnsibleModule.log()
+
+Logs the output of Ansible.
+
+.. py:method:: AnsibleModule.debug()
+
+Debugs Ansible.
+
+.. py:method:: Ansible.get_bin_path()
+
+Retrieves the path for executables.
+
+.. py:method:: AnsibleModule.run_command()
+
+Runs a command within an Ansible module.
+
+.. py:method:: module.fail_json()
+
+Exits and returns a failure.
+
+.. py:method:: module.exit_json()
+
+Exits and returns output.
+
+
+Modules
+=======
+
+.. py:module:: ansible.module_utils
+
+.. py:module:: ansible.module_utils.basic
+
+.. py:module:: ansible.module_utils.url