transfer/code/CCFM/src/_scdfm_imports.py

"""
Central import hub for scDFM modules.
Requires _bootstrap_scdfm to have been imported first (at script entry point).
"""

import sys

# Ensure bootstrap has run
if "scdfm_src" not in sys.modules:
    import os
    sys.path.insert(0, os.path.normpath(os.path.join(os.path.dirname(__file__), "..")))
    import _bootstrap_scdfm

import scdfm_src.models.origin.layers as _layers
import scdfm_src.models.origin.model as _model
import scdfm_src.flow_matching.path as _fm_path
import scdfm_src.flow_matching.path.scheduler.scheduler as _scheduler
import scdfm_src.utils.utils as _utils
import scdfm_src.tokenizer.gene_tokenizer as _tokenizer
# === scDFM Layers ===
GeneadaLN = _layers.GeneadaLN
ContinuousValueEncoder = _layers.ContinuousValueEncoder
GeneEncoder = _layers.GeneEncoder
BatchLabelEncoder = _layers.BatchLabelEncoder
TimestepEmbedder = _layers.TimestepEmbedder
ExprDecoder = _layers.ExprDecoder

# === scDFM Blocks ===
DifferentialTransformerBlock = _model.DifferentialTransformerBlock
PerceiverBlock = _model.PerceiverBlock
DiffPerceiverBlock = _model.DiffPerceiverBlock

# === scDFM Flow Matching ===
AffineProbPath = _fm_path.AffineProbPath
CondOTScheduler = _scheduler.CondOTScheduler

# === scDFM Utils ===
save_checkpoint = _utils.save_checkpoint
load_checkpoint = _utils.load_checkpoint
make_lognorm_poisson_noise = _utils.make_lognorm_poisson_noise
pick_eval_score = _utils.pick_eval_score
process_vocab = _utils.process_vocab
set_requires_grad_for_p_only = _utils.set_requires_grad_for_p_only
get_perturbation_emb = _utils.get_perturbation_emb

# === scDFM Tokenizer ===
GeneVocab = _tokenizer.GeneVocab

# === scDFM Data ===
# Data loading handled separately in CCFM (scDFM data module has heavy deps)