{
  "meta": [
    {
      "col_name": "TFBS_chr",
      "level": "feature",
      "type": "category",
      "label": "chr",
      "sublabel": "TBFS"
    },
    {
      "col_name": "TFBS_start",
      "level": "feature",
      "type": "category",
      "label": "start",
      "sublabel": "TFBS"
    },
    {
      "col_name": "TFBS_end",
      "level": "feature",
      "type": "category",
      "label": "end",
      "sublabel": "TFBS"
    },
    {
      "col_name": "TFBS_name",
      "level": "feature",
      "type": "category",
      "label": "name",
      "sublabel": "TFBS"
    },
    {
      "col_name": "TFBS_score",
      "level": "feature",
      "type": "category",
      "label": "score",
      "sublabel": "TFBS"
    },
    {
      "col_name": "TFBS_strand",
      "level": "feature",
      "type": "category",
      "label": "strand",
      "sublabel": "TFBS"
    },
    {
      "col_name": "peak_chr",
      "level": "feature",
      "type": "category",
      "label": "chr",
      "sublabel": "peak"
    },
    {
      "col_name": "peak_start",
      "level": "feature",
      "type": "category",
      "label": "start",
      "sublabel": "peak"
    },
    {
      "col_name": "peak_end",
      "level": "feature",
      "type": "category",
      "label": "end",
      "sublabel": "peak"
    },
    {
      "col_name": "peak_id",
      "level": "feature",
      "type": "array",
      "label": "id",
      "sublabel": "peak"
    },
    {
      "col_name": "feature",
      "level": "feature",
      "type": "category",
      "label": "feature",
      "sublabel": ""
    },
    {
      "col_name": "feat_start",
      "level": "feature",
      "type": "category",
      "label": "start",
      "sublabel": "feature"
    },
    {
      "col_name": "feat_end",
      "level": "feature",
      "type": "category",
      "label": "end",
      "sublabel": "feature"
    },
    {
      "col_name": "feat_strand",
      "level": "feature",
      "type": "category",
      "label": "strand",
      "sublabel": "feature"
    },
    {
      "col_name": "feat_anchor",
      "level": "feature",
      "type": "category",
      "label": "anchor",
      "sublabel": "feature"
    },
    {
      "col_name": "distance",
      "level": "feature",
      "type": "category",
      "label": "distance",
      "sublabel": ""
    },
    {
      "col_name": "gene_biotype",
      "level": "feature",
      "type": "category",
      "label": "biotype",
      "sublabel": "gene"
    },
    {
      "col_name": "gene_id",
      "level": "feature",
      "type": "category",
      "label": "id",
      "sublabel": "gene"
    },
    {
      "col_name": "gene_name",
      "level": "feature",
      "type": "category",
      "label": "name",
      "sublabel": "gene"
    },
    // overview columns
    {
      "col_name": "TF_name",
      "level": "feature",
      "type": "unique_id",
      "label": "TF name",
      "sublabel": ""
    },
    {
      "col_name": "cluster",
      "level": "feature",
      "type": "category",
      "label": "cluster",
      "sublabel": ""
    },
    {
      "col_name": "total_tfbs",
      "level": "feature",
      "type": "category",
      "label": "total TFBS",
      "sublabel": ""
    }
  ]
}