old_contents: 
  function getVectorMapConfig(opts) {
      return {
          buffersize: {
              mvt: 1
          },
          layers: Array(opts.numberOfLayers ||  1).map(() => _generateLayerConfig(opts));
      };
  }
  
  
  function _generateLayerConfig(opts) {
      return {
          type: 'mapnik',
          options: {
              sql: `
              SELECT
                  (DATE '2018-06-01' + x) as date,
                  x as cartodb_id,
                  st_makepoint(x * 10, x * 10) as the_geom,
                  st_makepoint(x * 10, x * 10) as the_geom_webmercator
              FROM 
                  generate_series(0, 1) x`,
              aggregation: {
                  columns: {},
                  dimensions: {
                      date: 'date'
                  },
                  placement: 'centroid',
                  resolution: 1,
                  threshold: 1
              },
              dates_as_numbers: opts.dates_as_numbers,
              metadata: {
                  geometryType: true,
                  columnStats: {
                      topCategories: 32768,
                      includeNulls: true
                  },
                  sample: {
                      num_rows: 1000,
                      include_columns: [
                          'date'
                      ]
                  }
              }
          }
      };
  }
  
  
  
  
  module.exports = { getVectorMapConfig };
new_contents: 
  function getVectorMapConfig(opts) {
      return {
          buffersize: {
              mvt: 1
          },
          layers: Array(opts.numberOfLayers || 1).map(() => _generateLayerConfig(opts)),
      };
  }
  
  
  function _generateLayerConfig(opts) {
      return {
          type: 'mapnik',
          options: {
              sql: `
              SELECT
                  (DATE '2018-06-01' + x) as date,
                  x as cartodb_id,
                  st_makepoint(x * 10, x * 10) as the_geom,
                  st_makepoint(x * 10, x * 10) as the_geom_webmercator
              FROM 
                  generate_series(0, 1) x`,
              aggregation: {
                  columns: {},
                  dimensions: {
                      date: 'date'
                  },
                  placement: 'centroid',
                  resolution: 1,
                  threshold: 1
              },
              dates_as_numbers: opts.dates_as_numbers,
              metadata: {
                  geometryType: true,
                  columnStats: {
                      topCategories: 32768,
                      includeNulls: true
                  },
                  sample: {
                      num_rows: 1000,
                      include_columns: [
                          'date'
                      ]
                  }
              }
          }
      };
  }
  
  
  
  
  module.exports = { getVectorMapConfig };
subject: Fix linter