How to use the pydriller.domain.commit.Modification function in PyDriller

def test_filename():
    diff_and_sc = {
        'diff': '',
        'source_code': '',
        'source_code_before': ''
    }
    m1 = Modification('dspadini/pydriller/myfile.py',
                      'dspadini/pydriller/mynewfile.py',
                      ModificationType.ADD, diff_and_sc)
    m3 = Modification('dspadini/pydriller/myfile.py',
                      'dspadini/pydriller/mynewfile.py',
                      ModificationType.ADD, diff_and_sc)
    m2 = Modification('dspadini/pydriller/myfile.py',
                      None,
                      ModificationType.ADD, diff_and_sc)

    assert m1.filename == 'mynewfile.py'
    assert m2.filename == 'myfile.py'
    assert m1 != m2
    assert m3 == m1

def test_filename():
    diff_and_sc = {
        'diff': '',
        'source_code': '',
        'source_code_before': ''
    }
    m1 = Modification('dspadini/pydriller/myfile.py',
                      'dspadini/pydriller/mynewfile.py',
                      ModificationType.ADD, diff_and_sc)
    m3 = Modification('dspadini/pydriller/myfile.py',
                      'dspadini/pydriller/mynewfile.py',
                      ModificationType.ADD, diff_and_sc)
    m2 = Modification('dspadini/pydriller/myfile.py',
                      None,
                      ModificationType.ADD, diff_and_sc)

    assert m1.filename == 'mynewfile.py'
    assert m2.filename == 'myfile.py'
    assert m1 != m2
    assert m3 == m1

def test_metrics_java():
    with open('test-repos/test6/FileJava.java') as f:
        sc = f.read()

    diff_and_sc = {
        'diff': '',
        'source_code': sc,
        'source_code_before': sc
    }

    m1 = Modification('test-repos/test6/FileJava.java',
                      "test-repos/test6/FileJava.java",
                      ModificationType.MODIFY, diff_and_sc)

    assert m1.nloc == 466
    assert m1.token_count == 3809
    assert m1.complexity == 92

    assert len(m1.methods) == 46

def test_metrics_not_supported_file():
    sc = 'asd !&%@*&^@\n jjdkj'

    diff_and_sc = {
        'diff': '',
        'source_code': sc,
        'source_code_before': sc
    }

    m1 = Modification('test-repos/test6/NotSupported.pdf',
                      "test-repos/test6/NotSupported.pdf",
                      ModificationType.MODIFY, diff_and_sc)

    assert m1.nloc == 2
    assert len(m1.methods) == 0

def test_filename():
    diff_and_sc = {
        'diff': '',
        'source_code': '',
        'source_code_before': ''
    }
    m1 = Modification('dspadini/pydriller/myfile.py',
                      'dspadini/pydriller/mynewfile.py',
                      ModificationType.ADD, diff_and_sc)
    m3 = Modification('dspadini/pydriller/myfile.py',
                      'dspadini/pydriller/mynewfile.py',
                      ModificationType.ADD, diff_and_sc)
    m2 = Modification('dspadini/pydriller/myfile.py',
                      None,
                      ModificationType.ADD, diff_and_sc)

    assert m1.filename == 'mynewfile.py'
    assert m2.filename == 'myfile.py'
    assert m1 != m2
    assert m3 == m1

def test_metrics_python():
    with open('test-repos/test6/git_repository.py') as f:
        sc = f.read()

    diff_and_sc = {
        'diff': '',
        'source_code': sc,
        'source_code_before': sc
    }

    m1 = Modification('test-repos/test6/git_repository.py',
                      "test-repos/test6/git_repository.py",
                      ModificationType.MODIFY, diff_and_sc)

    assert m1.nloc == 196
    assert m1.token_count == 1009
    assert m1.complexity == 43

    assert len(m1.methods) == 19

def __eq__(self, other):
        if not isinstance(other, Modification):
            return NotImplemented
        if self is other:
            return True
        return self.__dict__ == other.__dict__

def _parse_diff(self, diff_index) -> List[Modification]:
        modifications_list = []
        for diff in diff_index:
            old_path = diff.a_path
            new_path = diff.b_path
            change_type = self._from_change_to_modification_type(diff)

            diff_and_sc = {
                'diff': self._get_decoded_str(diff.diff),
                'source_code_before': self._get_decoded_sc_str(
                    diff.a_blob),
                'source_code': self._get_decoded_sc_str(
                    diff.b_blob)
            }

            modifications_list.append(Modification(old_path, new_path,
                                                   change_type, diff_and_sc))

        return modifications_list