Gets problematic genes from problematic SNPs
get_problematic_genes(
  problematic_snps,
  weights,
  finemap_res,
  pip_thresh = 0.5,
  z_thresh = NULL
)a character vector of problematic SNP rsIDs
a list of weights
a data frame of cTWAS finemapping results
cutoff of gene PIP to select genes
cutoff of abs(z-scores) to select genes
a vector of problematic genes