Client update needed to match WebSocket spec changes

[client-library-maintainer]

A diff between this client library's spec and our hosted spec was found. The client may need an update to match any changes in our API. See the diff below:

--- https://raw.githubusercontent.com/polygon-io/client-python/master/.polygon/websocket.json
+++ https://api.polygon.io/specs/websocket.json
@@ -111,6 +111,20 @@
           ]
         }
       ]
+    },
+    "indices": {
+      "market": [
+        {
+          "paths": [
+            "/indices/AM"
+          ]
+        },
+        {
+          "paths": [
+            "/indices/V"
+          ]
+        }
+      ]
     }
   },
   "paths": {
@@ -1977,6 +1991,195 @@
           }
         ]
       }
+    },
+    "/indices/AM": {
+      "get": {
+        "summary": "Aggregates (Per Minute)",
+        "description": "Stream real-time minute aggregates for a given index ticker symbol.\n",
+        "parameters": [
+          {
+            "name": "ticker",
+            "in": "query",
+            "description": "Specify an index ticker using \"I:\" prefix or use * to subscribe to all index tickers.\nYou can also use a comma separated list to subscribe to multiple index tickers.\nYou can retrieve available index tickers from our [Index Tickers API](https://polygon.io/docs/indices/get_v3_reference_tickers).\n",
+            "required": true,
+            "schema": {
+              "type": "string",
+              "pattern": "/^(I:[a-zA-Z0-9]+)$/"
+            },
+            "example": "*"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "The WebSocket message for a minute aggregate event.",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "allOf": [
+                    {
+                      "type": "object",
+                      "properties": {
+                        "ev": {
+                          "description": "The event type."
+                        },
+                        "sym": {
+                          "type": "string",
+                          "description": "The symbol representing the given index."
+                        },
+                        "op": {
+                          "type": "number",
+                          "format": "double",
+                          "description": "Today's official opening value."
+                        },
+                        "o": {
+                          "type": "number",
+                          "format": "double",
+                          "description": "The opening index value for this aggregate window."
+                        },
+                        "c": {
+                          "type": "number",
+                          "format": "double",
+                          "description": "The closing index value for this aggregate window."
+                        },
+                        "h": {
+                          "type": "number",
+                          "format": "double",
+                          "description": "The highest index value for this aggregate window."
+                        },
+                        "l": {
+                          "type": "number",
+                          "format": "double",
+                          "description": "The lowest index value for this aggregate window."
+                        },
+                        "s": {
+                          "type": "integer",
+                          "description": "The timestamp of the starting index for this aggregate window in Unix Milliseconds."
+                        },
+                        "e": {
+                          "type": "integer",
+                          "description": "The timestamp of the ending index for this aggregate window in Unix Milliseconds."
+                        }
+                      }
+                    },
+                    {
+                      "properties": {
+                        "ev": {
+                          "enum": [
+                            "AM"
+                          ],
+                          "description": "The event type."
+                        }
+                      }
+                    }
+                  ]
+                },
+                "example": {
+                  "ev": "AM",
+                  "sym": "I:SPX",
+                  "op": 3985.67,
+                  "o": 3985.67,
+                  "c": 3985.67,
+                  "h": 3985.67,
+                  "l": 3985.67,
+                  "s": 1678220675805,
+                  "e": 1678220675805
+                }
+              }
+            }
+          }
+        },
+        "x-polygon-entitlement-data-type": {
+          "name": "aggregates",
+          "description": "Aggregate data"
+        },
+        "x-polygon-entitlement-market-type": {
+          "name": "indices",
+          "description": "Indices data"
+        },
+        "x-polygon-entitlement-allowed-timeframes": [
+          {
+            "name": "delayed",
+            "description": "15 minute delayed data"
+          },
+          {
+            "name": "realtime",
+            "description": "Real Time Data"
+          }
+        ]
+      }
+    },
+    "/indices/V": {
+      "get": {
+        "summary": "Value",
+        "description": "Real-time value for a given index ticker symbol.\n",
+        "parameters": [
+          {
+            "name": "ticker",
+            "in": "query",
+            "description": "Specify an index ticker using \"I:\" prefix or use * to subscribe to all index tickers.\nYou can also use a comma separated list to subscribe to multiple index tickers.\nYou can retrieve available index tickers from our [Index Tickers API](https://polygon.io/docs/indices/get_v3_reference_tickers).\n",
+            "required": true,
+            "schema": {
+              "type": "string",
+              "pattern": "/^(I:[a-zA-Z0-9]+)$/"
+            },
+            "example": "I:SPX"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "The WebSocket message for a value event.",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "type": "object",
+                  "properties": {
+                    "ev": {
+                      "type": "string",
+                      "enum": [
+                        "V"
+                      ],
+                      "description": "The event type."
+                    },
+                    "val": {
+                      "description": "The value of the index."
+                    },
+                    "T": {
+                      "description": "The assigned ticker of the index."
+                    },
+                    "t": {
+                      "description": "The Timestamp in Unix MS."
+                    }
+                  }
+                },
+                "example": {
+                  "ev": "V",
+                  "val": 3988.5,
+                  "T": "I:SPX",
+                  "t": 1678220098130
+                }
+              }
+            }
+          }
+        },
+        "x-polygon-entitlement-data-type": {
+          "name": "value",
+          "description": "Index value data"
+        },
+        "x-polygon-entitlement-market-type": {
+          "name": "indices",
+          "description": "Indices data"
+        },
+        "x-polygon-entitlement-allowed-timeframes": [
+          {
+            "name": "delayed",
+            "description": "15 minute delayed data"
+          },
+          {
+            "name": "realtime",
+            "description": "Real Time Data"
+          }
+        ]
+      }
     }
   },
   "components": {
@@ -3349,6 +3552,131 @@
       "CryptoReceivedTimestamp": {
         "type": "integer",
         "description": "The timestamp that the tick was received by Polygon."
+      },
+      "IndicesBaseAggregateEvent": {
+        "type": "object",
+        "properties": {
+          "ev": {
+            "description": "The event type."
+          },
+          "sym": {
+            "type": "string",
+            "description": "The symbol representing the given index."
+          },
+          "op": {
+            "type": "number",
+            "format": "double",
+            "description": "Today's official opening value."
+          },
+          "o": {
+            "type": "number",
+            "format": "double",
+            "description": "The opening index value for this aggregate window."
+          },
+          "c": {
+            "type": "number",
+            "format": "double",
+            "description": "The closing index value for this aggregate window."
+          },
+          "h": {
+            "type": "number",
+            "format": "double",
+            "description": "The highest index value for this aggregate window."
+          },
+          "l": {
+            "type": "number",
+            "format": "double",
+            "description": "The lowest index value for this aggregate window."
+          },
+          "s": {
+            "type": "integer",
+            "description": "The timestamp of the starting index for this aggregate window in Unix Milliseconds."
+          },
+          "e": {
+            "type": "integer",
+            "description": "The timestamp of the ending index for this aggregate window in Unix Milliseconds."
+          }
+        }
+      },
+      "IndicesMinuteAggregateEvent": {
+        "allOf": [
+          {
+            "type": "object",
+            "properties": {
+              "ev": {
+                "description": "The event type."
+              },
+              "sym": {
+                "type": "string",
+                "description": "The symbol representing the given index."
+              },
+              "op": {
+                "type": "number",
+                "format": "double",
+                "description": "Today's official opening value."
+              },
+              "o": {
+                "type": "number",
+                "format": "double",
+                "description": "The opening index value for this aggregate window."
+              },
+              "c": {
+                "type": "number",
+                "format": "double",
+                "description": "The closing index value for this aggregate window."
+              },
+              "h": {
+                "type": "number",
+                "format": "double",
+                "description": "The highest index value for this aggregate window."
+              },
+              "l": {
+                "type": "number",
+                "format": "double",
+                "description": "The lowest index value for this aggregate window."
+              },
+              "s": {
+                "type": "integer",
+                "description": "The timestamp of the starting index for this aggregate window in Unix Milliseconds."
+              },
+              "e": {
+                "type": "integer",
+                "description": "The timestamp of the ending index for this aggregate window in Unix Milliseconds."
+              }
+            }
+          },
+          {
+            "properties": {
+              "ev": {
+                "enum": [
+                  "AM"
+                ],
+                "description": "The event type."
+              }
+            }
+          }
+        ]
+      },
+      "IndicesValueEvent": {
+        "type": "object",
+        "properties": {
+          "ev": {
+            "type": "string",
+            "enum": [
+              "V"
+            ],
+            "description": "The event type."
+          },
+          "val": {
+            "description": "The value of the index."
+          },
+          "T": {
+            "description": "The assigned ticker of the index."
+          },
+          "t": {
+            "description": "The Timestamp in Unix MS."
+          }
+        }
       }
     },
     "parameters": {
@@ -3406,6 +3734,28 @@
           "pattern": "/^(?<from>([A-Z]*)-(?<to>[A-Z]{3}))$/"
         },
         "example": "*"
+      },
+      "IndicesIndexParam": {
+        "name": "ticker",
+        "in": "query",
+        "description": "Specify an index ticker using \"I:\" prefix or use * to subscribe to all index tickers.\nYou can also use a comma separated list to subscribe to multiple index tickers.\nYou can retrieve available index tickers from our [Index Tickers API](https://polygon.io/docs/indices/get_v3_reference_tickers).\n",
+        "required": true,
+        "schema": {
+          "type": "string",
+          "pattern": "/^(I:[a-zA-Z0-9]+)$/"
+        },
+        "example": "*"
+      },
+      "IndicesIndexParamWithoutWildcard": {
+        "name": "ticker",
+        "in": "query",
+        "description": "Specify an index ticker using \"I:\" prefix or use * to subscribe to all index tickers.\nYou can also use a comma separated list to subscribe to multiple index tickers.\nYou can retrieve available index tickers from our [Index Tickers API](https://polygon.io/docs/indices/get_v3_reference_tickers).\n",
+        "required": true,
+        "schema": {
+          "type": "string",
+          "pattern": "/^(I:[a-zA-Z0-9]+)$/"
+        },
+        "example": "I:SPX"
       }
     }
   }

[justinpolygon]

This was fixed via #408