__add__.py

# Notice that the following function is a pseudo example to estimate the RNA velocity from 2 cells
class RNASequencingData:
    def __init__(self, gene_expression, spliced_expression, unspliced_expression):
        self.gene_expression = gene_expression
        self.spliced_expression = spliced_expression
        self.unspliced_expression = unspliced_expression

    def compute_velocity(self):
        velocity = self.spliced_expression - self.unspliced_expression
        return velocity

class Cell:
    def __init__(self, cell_id, rna_data):
        self.cell_id = cell_id
        self.rna_data = rna_data

    def __add__(self, other):
        # Combine RNA sequencing data for two cells
        combined_gene_expression = self.rna_data.gene_expression + other.rna_data.gene_expression
        combined_spliced_expression = self.rna_data.spliced_expression + other.rna_data.spliced_expression
        combined_unspliced_expression = self.rna_data.unspliced_expression + other.rna_data.unspliced_expression
        
        # Create a new RNASequencingData object for the combined data
        combined_rna_data = RNASequencingData(
            combined_gene_expression,
            combined_spliced_expression,
            combined_unspliced_expression
        )
        
        # Create a new Cell object with the combined data
        combined_cell = Cell(cell_id="Combined", rna_data=combined_rna_data)
        
        return combined_cell

# Create RNA sequencing data for two cells
cell1_rna_data = RNASequencingData(
    gene_expression=10,
    spliced_expression=5,
    unspliced_expression=2
)

cell2_rna_data = RNASequencingData(
    gene_expression=15,
    spliced_expression=9,
    unspliced_expression=3
)

# Create Cell objects for the two cells
cell1 = Cell(cell_id="Cell1", rna_data=cell1_rna_data)
cell2 = Cell(cell_id="Cell2", rna_data=cell2_rna_data)

# Combine the RNA sequencing data for cell1 and cell2
combined_cell = cell1 + cell2

# Compute the velocity for the combined data
velocity = combined_cell.rna_data.compute_velocity()

# Print the result
print(f"Combined Cell RNA Velocity: {velocity}")