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  "height": 200,
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          "type": "timeunit",
          "units": ["month"],
          "as": ["month_date", "month_date_end"]
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          "height": {"signal": "height"}
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          "scale": "child__temp_max_x",
          "orient": "bottom",
          "gridScale": "child__temp_max_y",
          "grid": true,
          "domain": false,
          "labels": false,
          "aria": false,
          "maxExtent": 0,
          "minExtent": 0,
          "ticks": false,
          "zindex": 0
        },
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          "orient": "left",
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          "grid": true,
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          "labels": false,
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          "zindex": 0
        },
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          "title": "date (month)",
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          "labelOverlap": true,
          "zindex": 0
        },
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          "orient": "left",
          "grid": false,
          "title": "Mean of temp_max",
          "labelOverlap": true,
          "tickCount": {"signal": "ceil(height/40)"},
          "zindex": 0
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      ]
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          "height": {"signal": "height"}
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                    "scale": "child__precipitation_x",
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                    "scale": "child__precipitation_y",
                    "field": "mean_precipitation"
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                }
              }
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          ]
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      ],
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        {
          "scale": "child__precipitation_x",
          "orient": "bottom",
          "gridScale": "child__precipitation_y",
          "grid": true,
          "domain": false,
          "labels": false,
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        },
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          "labelOverlap": true,
          "zindex": 0
        },
        {
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          "orient": "left",
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          "title": "Mean of precipitation",
          "labelOverlap": true,
          "tickCount": {"signal": "ceil(height/40)"},
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        }
      ]
    },
    {
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      "name": "child__wind_group",
      "style": "cell",
      "encode": {
        "update": {
          "width": {"signal": "childWidth"},
          "height": {"signal": "height"}
        }
      },
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          "type": "group",
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              "name": "faceted_path_child__wind_main",
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              "groupby": ["location"]
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          },
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              "style": ["line"],
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                  },
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                  "y": {"scale": "child__wind_y", "field": "mean_wind"},
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                }
              }
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          ]
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      ],
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          "scale": "child__wind_x",
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          "gridScale": "child__wind_y",
          "grid": true,
          "domain": false,
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          "grid": false,
          "title": "date (month)",
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          "labelOverlap": true,
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        },
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          "scale": "child__wind_y",
          "orient": "left",
          "grid": false,
          "title": "Mean of wind",
          "labelOverlap": true,
          "tickCount": {"signal": "ceil(height/40)"},
          "zindex": 0
        }
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      "name": "color",
      "type": "ordinal",
      "domain": {"data": "source_0", "field": "location", "sort": true},
      "range": "category"
    },
    {
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      "nice": true,
      "zero": true
    },
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      "zero": true
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      "nice": true,
      "zero": true
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