remove blank lines

src/DotNetStac/Collection/IStacSummaryItem.cs

@@ -15,13 +15,14 @@ public interface IStacSummaryItem : IEnumerable<JToken>
         /// <summary>
         /// Gets or sets the summary value with the specified fields (for objects only)
         /// </summary>
-
         JToken this[object key] { get; }
 
         /// <summary>
         /// Gets the summary item as a JToken
         /// </summary>
-
+        /// <value>
+        /// <placeholder>The summary item as a JToken</placeholder>
+        /// </value>
         JToken AsJToken { get; }
 
         IEnumerable<object> Enumerate();

src/DotNetStac/Collection/StacSummaryItem.cs

@@ -30,7 +30,6 @@ protected StacSummaryItem(JToken summary)
         /// <summary>
         /// accessor of fields in the object
         /// </summary>
-
         public JToken this[object key]
         {
             get

src/DotNetStac/Collection/StacTemporalExtent.cs

@@ -38,7 +38,9 @@ public StacTemporalExtent(StacTemporalExtent temporal)
         /// <summary>
         /// Gets or sets potential temporal extents.
         /// </summary>
-
+        /// <value>
+        /// <placeholder>Potential temporal extents.</placeholder>
+        /// </value>
         [JsonProperty("interval")]
         public DateTime?[][] Interval { get; set; }
     }

src/DotNetStac/Common/PropertyObservableCollection.cs

@@ -49,6 +49,7 @@ private void ObservableCollectionInPropertiesChanged(object sender, NotifyCollec
             {
                 return;
             }
+
             this.PropertiesContainer.SetProperty(this.Key, this.ToList());
         }
     }

src/DotNetStac/Common/Statistics.cs

@@ -37,42 +37,54 @@ public Statistics(double? minimum, double? maximum, double? mean, double? stdev,
         /// <summary>
         /// Gets or sets mean value
         /// </summary>
-
+        /// <value>
+        /// <placeholder>Mean value</placeholder>
+        /// </value>
         [JsonProperty("mean")]
         public double? Mean { get; set; }
 
         /// <summary>
         /// Gets or sets minimum value
         /// </summary>
-
+        /// <value>
+        /// <placeholder>Minimum value</placeholder>
+        /// </value>
         [JsonProperty("minimum")]
         public double? Minimum { get; set; }
 
         /// <summary>
         /// Gets or sets maximum value
         /// </summary>
-
+        /// <value>
+        /// <placeholder>Maximum value</placeholder>
+        /// </value>
         [JsonProperty("maximum")]
         public double? Maximum { get; set; }
 
         /// <summary>
         /// Gets or sets standard Deviation
         /// </summary>
-
+        /// <value>
+        /// <placeholder>Standard Deviation</placeholder>
+        /// </value>
         [JsonProperty("stdev")]
         public double? Stdev { get; set; }
 
         /// <summary>
         /// Gets or sets valid percentage
         /// </summary>
-
+        /// <value>
+        /// <placeholder>Valid percentage</placeholder>
+        /// </value>
         [JsonProperty("valid_percent")]
         public double? ValidPercent { get; set; }
 
         /// <summary>
         /// Gets or sets additional fields
         /// </summary>
-
+        /// <value>
+        /// <placeholder>Additional fields</placeholder>
+        /// </value>
         [JsonExtensionData]
         public IDictionary<string, object> Properties { get => this.properties; set => this.properties = value; }
 

src/DotNetStac/Extensions/Alternate/AlternateAssetObject.cs

@@ -69,7 +69,9 @@ public AlternateAssetObject(string href, IStacObject parent = null, string title
         /// <summary>
         /// Gets or sets additional fields
         /// </summary>
-
+        /// <value>
+        /// <placeholder>Additional fields</placeholder>
+        /// </value>
         [JsonExtensionData]
         public IDictionary<string, object> Properties { get => this.properties; set => this.properties = value; }
 

src/DotNetStac/Extensions/Datacube/DatacubeDimensionObject.cs

@@ -69,7 +69,9 @@ public class DatacubeDimension : IStacPropertiesContainer
         /// <summary>
         /// Gets or sets additional fields
         /// </summary>
-
+        /// <value>
+        /// <placeholder>Additional fields</placeholder>
+        /// </value>
         [JsonExtensionData]
         public IDictionary<string, object> Properties { get => this.properties; set => this.properties = value; }
 

src/DotNetStac/Extensions/Datacube/DatacubeVariableObject.cs

@@ -79,7 +79,9 @@ public class DatacubeVariable : IStacPropertiesContainer
         /// <summary>
         /// Gets or sets additional fields
         /// </summary>
-
+        /// <value>
+        /// <placeholder>Additional fields</placeholder>
+        /// </value>
         [JsonExtensionData]
         public IDictionary<string, object> Properties { get => this.properties; set => this.properties = value; }
 

src/DotNetStac/Extensions/Eo/EoBandObject.cs

@@ -54,35 +54,45 @@ public EoBandObject(string name, EoBandCommonName? commonName)
         /// <summary>
         /// Gets or sets the name commonly used to refer to the band to make it easier to search for bands across instruments.
         /// </summary>
-
+        /// <value>
+        /// <placeholder>The name commonly used to refer to the band to make it easier to search for bands across instruments.</placeholder>
+        /// </value>
         [JsonProperty("common_name")]
         public EoBandCommonName? CommonName { get => this.commonName; set => this.commonName = value; }
 
         /// <summary>
         /// Gets or sets the center wavelength of the band, in micrometers (μm).
         /// </summary>
-
+        /// <value>
+        /// <placeholder>The center wavelength of the band, in micrometers (μm).</placeholder>
+        /// </value>
         [JsonProperty("center_wavelength")]
         public double? CenterWavelength { get; set; }
 
         /// <summary>
         /// Gets or sets full width at half maximum (FWHM). The width of the band, as measured at half the maximum transmission, in micrometers (μm).
         /// </summary>
-
+        /// <value>
+        /// <placeholder>Full width at half maximum (FWHM). The width of the band, as measured at half the maximum transmission, in micrometers (μm).</placeholder>
+        /// </value>
         [JsonProperty("full_width_half_max")]
         public double? FullWidthHalfMax { get; set; }
 
         /// <summary>
         /// Gets or sets the solar illumination of the band, as measured at half the maximum transmission, in W/m2/micrometers.
         /// </summary>
-
+        /// <value>
+        /// <placeholder>The solar illumination of the band, as measured at half the maximum transmission, in W/m2/micrometers.</placeholder>
+        /// </value>
         [JsonProperty("solar_illumination")]
         public double? SolarIllumination { get; set; }
 
         /// <summary>
         /// Gets or sets additional fields
         /// </summary>
-
+        /// <value>
+        /// <placeholder>Additional fields</placeholder>
+        /// </value>
         [JsonExtensionData]
         public IDictionary<string, object> Properties { get => this.properties; set => this.properties = value; }
 

src/DotNetStac/Extensions/File/FileStacExtension.cs

@@ -36,7 +36,9 @@ internal FileStacExtension(StacAsset stacAsset) : base(JsonSchemaUrl, stacAsset)
         /// <summary>
         /// Gets or sets the byte order of integer values in the file. One of big-endian or little-endian.
         /// </summary>
-
+        /// <value>
+        /// <placeholder>The byte order of integer values in the file. One of big-endian or little-endian.</placeholder>
+        /// </value>
         public ByteOrder ByteOrder
         {
             get { return this.StacPropertiesContainer.GetProperty<ByteOrder>(ByteOrderField); }
@@ -46,7 +48,9 @@ public ByteOrder ByteOrder
         /// <summary>
         /// Gets or sets the name commonly used to refer to the processing level to make it easier to search for product level across collections or items.
         /// </summary>
-
+        /// <value>
+        /// <placeholder>The name commonly used to refer to the processing level to make it easier to search for product level across collections or items.</placeholder>
+        /// </value>
         public Multihash Checksum
         {
             get { return Multihash.Parse(this.StacPropertiesContainer.GetProperty<string>(ChecksumField)); }
@@ -56,7 +60,9 @@ public Multihash Checksum
         /// <summary>
         /// Gets or sets the name of the facility that produced the data. 
         /// </summary>
-
+        /// <value>
+        /// <placeholder>The name of the facility that produced the data. </placeholder>
+        /// </value>
         public uint? HeaderSize
         {
             get { return this.StacPropertiesContainer.GetProperty<uint?>(HeaderSizeField); }
@@ -66,7 +72,9 @@ public uint? HeaderSize
         /// <summary>
         /// Gets or sets the name of the facility that produced the data. 
         /// </summary>
-
+        /// <value>
+        /// <placeholder>The name of the facility that produced the data. </placeholder>
+        /// </value>
         public ulong? Size
         {
             get { return this.StacPropertiesContainer.GetProperty<ulong?>(SizeField); }

src/DotNetStac/Extensions/Processing/ProcessingStacExtension.cs

@@ -34,7 +34,9 @@ internal ProcessingStacExtension(StacItem stacItem) : base(JsonSchemaUrl, stacIt
         /// <summary>
         /// Gets or sets lineage Information provided as free text information about the how observations were processed or models that were used to create the resource being described NASA ISO.
         /// </summary>
-
+        /// <value>
+        /// <placeholder>Lineage Information provided as free text information about the how observations were processed or models that were used to create the resource being described NASA ISO.</placeholder>
+        /// </value>
         public string Lineage
         {
             get { return this.StacPropertiesContainer.GetProperty<string>(LineageField); }
@@ -44,7 +46,9 @@ public string Lineage
         /// <summary>
         /// Gets or sets the name commonly used to refer to the processing level to make it easier to search for product level across collections or items.
         /// </summary>
-
+        /// <value>
+        /// <placeholder>The name commonly used to refer to the processing level to make it easier to search for product level across collections or items.</placeholder>
+        /// </value>
         public string Level
         {
             get { return this.StacPropertiesContainer.GetProperty<string>(LevelField); }
@@ -54,7 +58,9 @@ public string Level
         /// <summary>
         /// Gets or sets the name of the facility that produced the data. 
         /// </summary>
-
+        /// <value>
+        /// <placeholder>The name of the facility that produced the data. </placeholder>
+        /// </value>
         public string Facility
         {
             get { return this.StacPropertiesContainer.GetProperty<string>(FacilityField); }
@@ -64,7 +70,9 @@ public string Facility
         /// <summary>
         /// Gets a dictionary with name/version for key/value describing one or more softwares that produced the data.
         /// </summary>
-
+        /// <value>
+        /// <placeholder>A dictionary with name/version for key/value describing one or more softwares that produced the data.</placeholder>
+        /// </value>
         public IDictionary<string, string> Software
         {
             get

src/DotNetStac/Extensions/Raster/RasterBandObject.cs

@@ -56,29 +56,37 @@ public RasterBand()
         /// <summary>
         /// Gets or sets the data type of the band.
         /// </summary>
-
+        /// <value>
+        /// <placeholder>The data type of the band.</placeholder>
+        /// </value>
         [JsonProperty("data_type")]
         [JsonConverter(typeof(StringEnumConverter))]
         public DataType? DataType { get => this.dataType; set => this.dataType = value; }
 
         /// <summary>
         /// Gets or sets the actual number of bits used for this band.
         /// </summary>
-
+        /// <value>
+        /// <placeholder>The actual number of bits used for this band.</placeholder>
+        /// </value>
         [JsonProperty("bits_per_sample")]
         public int? BitsPerSample { get; set; }
 
         /// <summary>
         /// Gets or sets average spatial resolution (in meters) of the pixels in the band.
         /// </summary>
-
+        /// <value>
+        /// <placeholder>Average spatial resolution (in meters) of the pixels in the band.</placeholder>
+        /// </value>
         [JsonProperty("spatial_resolution")]
         public double? SpatialResolution { get; set; }
 
         /// <summary>
         /// Gets or sets statistics of all the pixels in the band
         /// </summary>
-
+        /// <value>
+        /// <placeholder>Statistics of all the pixels in the band</placeholder>
+        /// </value>
         [JsonProperty("statistics")]
         public Statistics Statistics { get; set; }
 
@@ -112,14 +120,18 @@ public RasterBand()
         /// <summary>
         /// Gets or sets histogram distribution information of the pixels values in the band
         /// </summary>
-
+        /// <value>
+        /// <placeholder>Histogram distribution information of the pixels values in the band</placeholder>
+        /// </value>
         [JsonProperty("histogram")]
         public RasterHistogram Histogram { get; set; }
 
         /// <summary>
         /// Gets or sets additional fields
         /// </summary>
-
+        /// <value>
+        /// <placeholder>Additional fields</placeholder>
+        /// </value>
         [JsonExtensionData]
         public IDictionary<string, object> Properties { get => this.properties; set => this.properties = value; }
 

src/DotNetStac/Extensions/Raster/RasterHistogram.cs

@@ -15,28 +15,36 @@ public class RasterHistogram
         /// <summary>
         /// Gets or sets number of buckets of the distribution.
         /// </summary>
-
+        /// <value>
+        /// <placeholder>Number of buckets of the distribution.</placeholder>
+        /// </value>
         [JsonProperty("count")]
         public int? Count { get; set; }
 
         /// <summary>
         /// Gets or sets minimum value of the distribution. Also the mean value of the first bucket.
         /// </summary>
-
+        /// <value>
+        /// <placeholder>Minimum value of the distribution. Also the mean value of the first bucket.</placeholder>
+        /// </value>
         [JsonProperty("min")]
         public double? Min { get; set; }
 
         /// <summary>
         /// Gets or sets minimum value of the distribution. Also the mean value of the last bucket.
         /// </summary>
-
+        /// <value>
+        /// <placeholder>Minimum value of the distribution. Also the mean value of the last bucket.</placeholder>
+        /// </value>
         [JsonProperty("max")]
         public double? Max { get; set; }
 
         /// <summary>
         /// Gets or sets array of integer indicating the number of pixels included in the bucket.
         /// </summary>
-
+        /// <value>
+        /// <placeholder>Array of integer indicating the number of pixels included in the bucket.</placeholder>
+        /// </value>
         [JsonProperty("buckets")]
         public double[] Buckets { get; set; }
     }

src/DotNetStac/Extensions/StacExtensions.cs

@@ -21,7 +21,9 @@ public static class StacExtensions
         /// <summary>
         /// Gets dictionary of extensions managed by the library
         /// </summary>
-
+        /// <value>
+        /// <placeholder>Dictionary of extensions managed by the library</placeholder>
+        /// </value>
         public static Dictionary<string, Type> ManagedStacExtensions
         {
             get