Implement a complete version of an Array-Based List. Use 50 as the maximum number of elements. To create arrays use the method build_array from referential_array.py. Your List should include implementations for the following 10 functions.This is my referential array.

import ctypes def build_array(size): """ This function creates an array of references to Python Objects. Args: size (int): A positive integer, the size of the array. Returns: An array of python references with the given size. """ if size <= 0: raise ValueError("Array size should be larger than 0.") if not isinstance(size, int): raise ValueError("Array size should be an integer.") array = (size * ctypes.py_object)() array[:] = size * [None] return array

: __str__(self): Returns a string representation of the list. Structure the string so that there is one item per line. Called by str(self) __len__(self): Returns the length of the list. Called by len(self)

__contains__(self, item): Returns True if item is in the list, False otherwise. Called by item in self __getitem__(self, index): Returns the item at index in the list, if index is non-negative. If it is negative, it will return the last item if index is ?1, the second-to last if index is ?2, and so on up to minus the length of the list, which returns the ?rst item. The function raises an IndexError if index is out of the range from -len(self) to len(self). Called by self[index]

__setitem__(self, index, item): Sets the value at index in the list to be item. The index can be negative, behaving as described above. Raises an IndexError if index is out of the range from -len(self) to len(self). Called by self[index] = item

__eq__(self, other): Returns True if this list is equivalent to other. Called by self == other

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