Lists all available Biomart marts (databases) from Ensembl. Biomart organizes biological data in a hierarchy: MART -> DATASET -> ATTRIBUTES/FILTERS. This function returns all available marts as a CSV string. Returns: str: CSV-formatted table of all marts with their display names and descriptions. Example: list_marts() >>> "name,display_name,description ENSEMBL_MART_ENSEMBL,Ensembl Genes,Gene annotation from Ensembl ENSEMBL_MART_MOUSE,Mouse strains,Strain-specific data for mouse ..."

Lists all available biomart datasets for a given mart. Each mart contains multiple datasets. This function returns all datasets available in the specified mart as a CSV string. Args: mart (str): The mart identifier to list datasets from. Valid values include: ENSEMBL_MART_ENSEMBL, ENSEMBL_MART_MOUSE, ENSEMBL_MART_ONTOLOGY, ENSEMBL_MART_GENOMIC, ENSEMBL_MART_SNP, ENSEMBL_MART_FUNCGEN Returns: str: CSV-formatted table of all datasets with their display names and descriptions. Example: list_datasets("ENSEMBL_MART_ENSEMBL") >>> "name,display_name,description hsapiens_gene_ensembl,Human genes,Human genes (GRCh38.p13) mmusculus_gene_ensembl,Mouse genes,Mouse genes (GRCm39) ..."

Lists commonly used attributes available for a given dataset. This function returns only the most frequently used attributes (defined in COMMON_ATTRIBUTES) to avoid overwhelming the model with too many options. For a complete list, use list_all_attributes. Args: mart (str): The mart identifier (e.g., "ENSEMBL_MART_ENSEMBL") dataset (str): The dataset identifier (e.g., "hsapiens_gene_ensembl") Returns: str: CSV-formatted table of common attributes with their display names and descriptions. Example: list_common_attributes("ENSEMBL_MART_ENSEMBL", "hsapiens_gene_ensembl") >>> "name,display_name,description ensembl_gene_id,Gene stable ID,Ensembl stable ID for the gene external_gene_name,Gene name,The gene name ..."

Lists all available attributes for a given dataset with some filtering. This function returns a filtered list of all attributes available for the specified dataset. Some less commonly used attributes (homologs, microarray probes) are filtered out to reduce the response size. CAUTION: This function can return a large number of attributes and may be unstable for certain datasets. Consider using list_common_attributes first. Args: mart (str): The mart identifier (e.g., "ENSEMBL_MART_ENSEMBL") dataset (str): The dataset identifier (e.g., "hsapiens_gene_ensembl") Returns: str: CSV-formatted table of all filtered attributes. Example: list_all_attributes("ENSEMBL_MART_ENSEMBL", "hsapiens_gene_ensembl")