Group Tuples by First Element

Write a function `group_tuples` that takes a list of tuples as input and groups the tuples by their first element. The function should return a list of tuples where each tuple contains the first element followed by all the unique second elements grouped together.

#### Example Usage
```python [main.nopy]
print(group_tuples([('x', 'y'), ('x', 'z'), ('w', 't')]))
# Output: [('x', 'y', 'z'), ('w', 't')]

print(group_tuples([('a', 'b'), ('a', 'c'), ('d', 'e')]))
# Output: [('a', 'b', 'c'), ('d', 'e')]

print(group_tuples([('f', 'g'), ('f', 'g'), ('h', 'i')]))
# Output: [('f', 'g'), ('h', 'i')]
```

#### Constraints
- The input list will contain tuples of at least two elements.
- The first element of each tuple will be a string.
- The second elements will also be strings.
- The order of the grouped tuples in the output should follow the order of their first appearance in the input list.

def group_tuples(input_list):
    """
    Groups tuples by their first element and combines the second elements.

    Args:
        input_list (list): A list of tuples to be grouped.

    Returns:
        list: A list of grouped tuples.
    """
    # Initialize a dictionary to store grouped elements
    grouped = {}

    # Iterate through the input list
    for item in input_list:
        # Placeholder for processing logic
        pass

    # Convert the dictionary to a list of tuples
    result = []

    return result

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Intermediate lists dictionaries loops

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