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+# API Reference
+
+The Optics Framework provides a comprehensive set of APIs for test automation across different categories. This reference covers all available APIs, their methods, and usage examples.
+
+## Core API Modules
+
+### ActionKeyword
+
+The `ActionKeyword` class provides high-level functionality for performing user actions on applications, including pressing elements, scrolling, swiping, and text input.
+
+#### Methods
+
+##### Element Interaction
+
+- **`press_element(element, event_name=None)`**  
+  Presses/clicks the specified element using self-healing location strategies.
+  - `element`: Element identifier (XPath, image template, or OCR text)
+  - `event_name`: Optional event name for logging
+
+- **`press_by_coordinates(coor_x, coor_y, repeat=1, event_name=None)`**  
+  Presses at specific screen coordinates.
+  - `coor_x`, `coor_y`: Screen coordinates
+  - `repeat`: Number of times to repeat the action
+  - `event_name`: Optional event name
+
+- **`press_by_percentage(percent_x, percent_y, repeat=1, event_name=None)`**  
+  Presses at screen position defined by percentage of screen size.
+  - `percent_x`, `percent_y`: Percentage coordinates (0-100)
+  - `repeat`: Number of times to repeat
+  - `event_name`: Optional event name
+
+- **`press_element_with_index(element, index=0, event_name=None)`**  
+  Presses an element by its index when multiple matches are found.
+  - `element`: Element identifier
+  - `index`: Zero-based index of the element to press
+  - `event_name`: Optional event name
+
+- **`detect_and_press(element, timeout, event_name=None)`**  
+  Waits for element to appear and then presses it.
+  - `element`: Element identifier
+  - `timeout`: Maximum wait time in seconds
+  - `event_name`: Optional event name
+
+##### Form Controls
+
+- **`press_checkbox(element, event_name=None)`**  
+  Interacts with checkbox elements.
+  - `element`: Checkbox element identifier
+  - `event_name`: Optional event name
+
+- **`press_radio_button(element, event_name=None)`**  
+  Selects radio button elements.
+  - `element`: Radio button element identifier
+  - `event_name`: Optional event name
+
+- **`select_dropdown_option(element, option, event_name=None)`**  
+  Selects an option from a dropdown menu.
+  - `element`: Dropdown element identifier
+  - `option`: Option text to select
+  - `event_name`: Optional event name
+
+##### Scrolling and Swiping
+
+- **`scroll(direction, event_name=None)`**  
+  Performs scroll action in the specified direction.
+  - `direction`: Scroll direction ('up', 'down', 'left', 'right')
+  - `event_name`: Optional event name
+
+- **`scroll_until_element_appears(element, direction, timeout, event_name=None)`**  
+  Scrolls until the specified element becomes visible.
+  - `element`: Element to find
+  - `direction`: Scroll direction
+  - `timeout`: Maximum time to scroll
+  - `event_name`: Optional event name
+
+- **`scroll_from_element(element, direction, scroll_length, event_name=None)`**  
+  Scrolls from a specific element position.
+  - `element`: Starting element
+  - `direction`: Scroll direction
+  - `scroll_length`: Distance to scroll
+  - `event_name`: Optional event name
+
+- **`swipe(coor_x, coor_y, direction='right', swipe_length=50, event_name=None)`**  
+  Performs swipe gesture from coordinates.
+  - `coor_x`, `coor_y`: Starting coordinates
+  - `direction`: Swipe direction
+  - `swipe_length`: Swipe distance
+  - `event_name`: Optional event name
+
+- **`swipe_until_element_appears(element, direction, timeout, event_name=None)`**  
+  Swipes until element becomes visible.
+  - `element`: Element to find
+  - `direction`: Swipe direction
+  - `timeout`: Maximum time to swipe
+  - `event_name`: Optional event name
+
+- **`swipe_from_element(element, direction, swipe_length, event_name=None)`**  
+  Swipes from a specific element position.
+  - `element`: Starting element
+  - `direction`: Swipe direction
+  - `swipe_length`: Swipe distance
+  - `event_name`: Optional event name
+
+##### Text Input
+
+- **`enter_text(element, text, event_name=None)`**  
+  Enters text into the specified input element.
+  - `element`: Input element identifier
+  - `text`: Text to enter
+  - `event_name`: Optional event name
+
+- **`enter_text_direct(text, event_name=None)`**  
+  Enters text directly without targeting a specific element.
+  - `text`: Text to enter
+  - `event_name`: Optional event name
+
+### Verifier
+
+The `Verifier` class provides methods to verify elements, screens, and data integrity.
+
+#### Methods
+
+- **`validate_element(element, timeout=10, rule="all", event_name=None)`**  
+  Verifies the specified element exists.
+  - `element`: Element identifier (Image template, OCR template, or XPath)
+  - `timeout`: Time to wait for verification in seconds
+  - `rule`: Verification rule ("all" or "any")
+  - `event_name`: Optional event name
+
+- **`is_element(element, element_state, timeout, event_name=None)`**  
+  Checks if an element exists and matches the specified state.
+  - `element`: Element identifier
+  - `element_state`: Expected state of the element
+  - `timeout`: Maximum wait time
+  - `event_name`: Optional event name
+
+- **`assert_presence(element, timeout, rule, event_name=None)`**  
+  Asserts that elements are present using specified rules.
+  - `element`: Element or list of elements
+  - `timeout`: Time to wait
+  - `rule`: Rule for assertion ("all" or "any")
+  - `event_name`: Optional event name
+
+### FlowControl
+
+The `FlowControl` class manages control flow operations including loops, conditions, and data handling.
+
+#### Methods
+
+- **`condition(*args)`**  
+  Evaluates multiple conditions and executes corresponding modules if conditions are true.
+  - `*args`: Condition parameters
+
+- **`evaluate(param1, param2)`**  
+  Evaluates mathematical or logical expressions and stores results in variables.
+  - `param1`: First parameter for evaluation
+  - `param2`: Second parameter for evaluation
+
+- **`read_data(input_element, file_path, index=None)`**  
+  Reads data from CSV files, API URLs, or lists and assigns to variables.
+  - `input_element`: Variable to store the data
+  - `file_path`: Path to data source
+  - `index`: Optional index for specific data item
+
+- **`run_loop(target, *args)`**  
+  Runs loops either by count or by iterating over variable-value pairs.
+  - `target`: Loop target (module or count)
+  - `*args`: Loop parameters
+
+### AppManagement
+
+The `AppManagement` class provides functionality for launching, terminating, and modifying app settings.
+
+#### Methods
+
+- **`launch_app(event_name=None)`**  
+  Launches the specified application.
+  - `event_name`: Optional event name
+
+- **`start_appium_session(event_name=None)`**  
+  Starts an Appium session.
+  - `event_name`: Optional event name
+
+- **`start_other_app(package_name, event_name=None)`**  
+  Starts a different application by package name.
+  - `package_name`: Application package identifier
+  - `event_name`: Optional event name
+
+- **`close_app(event_name=None)`**  
+  Closes the current application.
+  - `event_name`: Optional event name
+
+- **`terminate_app(event_name=None)`**  
+  Terminates the application forcefully.
+  - `event_name`: Optional event name
+
+## REST API Endpoints
+
+The Optics Framework also provides a REST API for remote automation control through the FastAPI server.
+
+### Session Management
+
+#### POST `/v1/sessions/start`
+Creates a new automation session.
+
+**Request Body:**
+```json
+{
+  "driver_sources": ["appium"],
+  "elements_sources": ["appium_find_element"],
+  "text_detection": ["easyocr"],
+  "image_detection": ["templatematch"],
+  "project_path": "/path/to/project",
+  "appium_url": "http://localhost:4723",
+  "appium_config": {
+    "platformName": "Android",
+    "deviceName": "emulator-5554"
+  }
+}
+```
+
+**Response:**
+```json
+{
+  "session_id": "uuid-string",
+  "status": "created"
+}
+```
+
+#### DELETE `/v1/sessions/{session_id}/stop`
+Terminates an automation session.
+
+**Response:**
+```json
+{
+  "status": "terminated"
+}
+```
+
+### Action Execution
+
+#### POST `/v1/sessions/{session_id}/action`
+Executes a keyword action within a session.
+
+**Request Body:**
+```json
+{
+  "mode": "keyword",
+  "keyword": "press_element",
+  "params": ["element_identifier"]
+}
+```
+
+**Response:**
+```json
+{
+  "execution_id": "uuid-string",
+  "status": "SUCCESS",
+  "data": {"result": "action_result"}
+}
+```
+
+### Data Retrieval
+
+#### GET `/session/{session_id}/screenshot`
+Captures a screenshot of the current screen.
+
+#### GET `/session/{session_id}/elements`
+Retrieves interactive elements from the current screen.
+
+#### GET `/session/{session_id}/source`
+Gets the page source of the current application state.
+
+#### GET `/session/{session_id}/screen_elements`
+Captures screenshot and gets all screen elements in one call.
+
+### Event Streaming
+
+#### GET `/v1/sessions/{session_id}/events`
+Streams real-time events from the automation session using Server-Sent Events (SSE).
+
+## Usage Examples
+
+### Basic Element Interaction
+```python
+from optics_framework.api.action_keyword import ActionKeyword
+
+# Initialize action keyword instance
+action = ActionKeyword(builder)
+
+# Press an element
+action.press_element("login_button")
+
+# Enter text in a field
+action.enter_text("username_field", "my_username")
+
+# Scroll until element appears
+action.scroll_until_element_appears("submit_button", "down", 30)
+```
+
+### Verification
+```python
+from optics_framework.api.verifier import Verifier
+
+# Initialize verifier
+verifier = Verifier(builder)
+
+# Validate element presence
+verifier.validate_element("welcome_message", timeout=15)
+
+# Check element state
+verifier.is_element("checkbox", "checked", 10)
+```
+
+### Flow Control
+```python
+from optics_framework.api.flow_control import FlowControl
+
+# Initialize flow control
+flow = FlowControl(runner, modules)
+
+# Read data from CSV
+flow.read_data("user_data", "test_data.csv", 0)
+
+# Run conditional logic
+flow.condition("${user_data.active}", "equals", "true", "login_module")
+```
+
+### App Management
+```python
+from optics_framework.api.app_management import AppManagement
+
+# Initialize app management
+app_mgmt = AppManagement(builder)
+
+# Launch application
+app_mgmt.launch_app("test_start")
+
+# Close application
+app_mgmt.close_app("test_end")
+```
+
+## Self-Healing Features
+
+The ActionKeyword class includes self-healing capabilities through the `@with_self_healing` decorator. This feature:
+
+- Automatically tries multiple location strategies for elements
+- Captures screenshots for debugging when actions fail
+- Provides fallback mechanisms when primary element location fails
+- Logs detailed error information for troubleshooting
+
+## Error Handling
+
+All API methods include comprehensive error handling and logging:
+
+- Invalid element identifiers raise `ValueError` exceptions
+- Timeout scenarios are logged with appropriate error messages
+- Failed actions trigger fallback strategies when available
+- All operations are logged for debugging and audit purposes
+
+## Integration Notes
+
+- The framework supports multiple driver sources (Appium, screenshot-based)
+- Element location strategies include XPath, image templates, and OCR text
+- All methods support optional event naming for tracking and analytics
+- The API is designed for both programmatic use and CSV-based test definitions