Return the logical line corresponding to the result.

    Assumes input is already E702-clean.

def _get_logical(source_lines, result, logical_start, logical_end):
    """Return the logical line corresponding to the result.

    Assumes input is already E702-clean.

    """
    row = result['line'] - 1
    col = result['column'] - 1
    ls = None
    le = None
    for i in range(0, len(logical_start), 1):
        assert logical_end
        x = logical_end[i]
        if x[0] > row or (x[0] == row and x[1] > col):
            le = x
            ls = logical_start[i]
            break
    if ls is None:
        return None
    original = source_lines[ls[0]:le[0] + 1]
    return ls, le, original