diff --git a/docs/openapi.v2.json b/docs/openapi.v2.json
index 68abb9d..5cc1028 100644
--- a/docs/openapi.v2.json
+++ b/docs/openapi.v2.json
@@ -2,7 +2,7 @@
   "openapi" : "3.0.0",
   "info" : {
     "description" : "Twitter API v2 available endpoints",
-    "version" : "2.80",
+    "version" : "2.81",
     "title" : "Twitter API v2",
     "termsOfService" : "https://developer.twitter.com/en/developer-terms/agreement-and-policy.html",
     "contact" : {
@@ -2734,6 +2734,458 @@
         "x-twitter-streaming" : true
       }
     },
+    "/2/tweets/firehose/stream/lang/en" : {
+      "get" : {
+        "security" : [
+          {
+            "BearerToken" : [ ]
+          }
+        ],
+        "tags" : [
+          "Tweets"
+        ],
+        "summary" : "English Language Firehose stream",
+        "description" : "Streams 100% of English Language public Tweets.",
+        "operationId" : "getTweetsFirehoseStreamLangEn",
+        "parameters" : [
+          {
+            "name" : "backfill_minutes",
+            "in" : "query",
+            "description" : "The number of minutes of backfill requested.",
+            "required" : false,
+            "schema" : {
+              "type" : "integer",
+              "minimum" : 0,
+              "maximum" : 5,
+              "format" : "int32"
+            },
+            "style" : "form"
+          },
+          {
+            "name" : "partition",
+            "in" : "query",
+            "description" : "The partition number.",
+            "required" : true,
+            "schema" : {
+              "type" : "integer",
+              "minimum" : 1,
+              "maximum" : 20,
+              "format" : "int32"
+            },
+            "style" : "form"
+          },
+          {
+            "name" : "start_time",
+            "in" : "query",
+            "description" : "YYYY-MM-DDTHH:mm:ssZ. The earliest UTC timestamp to which the Tweets will be provided.",
+            "required" : false,
+            "example" : "2021-02-14T18:40:40.000Z",
+            "schema" : {
+              "type" : "string",
+              "format" : "date-time"
+            },
+            "style" : "form"
+          },
+          {
+            "name" : "end_time",
+            "in" : "query",
+            "description" : "YYYY-MM-DDTHH:mm:ssZ. The latest UTC timestamp to which the Tweets will be provided.",
+            "required" : false,
+            "example" : "2021-02-14T18:40:40.000Z",
+            "schema" : {
+              "type" : "string",
+              "format" : "date-time"
+            },
+            "style" : "form"
+          },
+          {
+            "$ref" : "#/components/parameters/TweetFieldsParameter"
+          },
+          {
+            "$ref" : "#/components/parameters/TweetExpansionsParameter"
+          },
+          {
+            "$ref" : "#/components/parameters/MediaFieldsParameter"
+          },
+          {
+            "$ref" : "#/components/parameters/PollFieldsParameter"
+          },
+          {
+            "$ref" : "#/components/parameters/UserFieldsParameter"
+          },
+          {
+            "$ref" : "#/components/parameters/PlaceFieldsParameter"
+          }
+        ],
+        "responses" : {
+          "200" : {
+            "description" : "The request has succeeded.",
+            "content" : {
+              "application/json" : {
+                "schema" : {
+                  "$ref" : "#/components/schemas/StreamingTweetResponse"
+                }
+              }
+            }
+          },
+          "default" : {
+            "description" : "The request has failed.",
+            "content" : {
+              "application/json" : {
+                "schema" : {
+                  "$ref" : "#/components/schemas/Error"
+                }
+              },
+              "application/problem+json" : {
+                "schema" : {
+                  "$ref" : "#/components/schemas/Problem"
+                }
+              }
+            }
+          }
+        },
+        "x-twitter-streaming" : true
+      }
+    },
+    "/2/tweets/firehose/stream/lang/ja" : {
+      "get" : {
+        "security" : [
+          {
+            "BearerToken" : [ ]
+          }
+        ],
+        "tags" : [
+          "Tweets"
+        ],
+        "summary" : "Japanese Language Firehose stream",
+        "description" : "Streams 100% of Japanese Language public Tweets.",
+        "operationId" : "getTweetsFirehoseStreamLangJa",
+        "parameters" : [
+          {
+            "name" : "backfill_minutes",
+            "in" : "query",
+            "description" : "The number of minutes of backfill requested.",
+            "required" : false,
+            "schema" : {
+              "type" : "integer",
+              "minimum" : 0,
+              "maximum" : 5,
+              "format" : "int32"
+            },
+            "style" : "form"
+          },
+          {
+            "name" : "partition",
+            "in" : "query",
+            "description" : "The partition number.",
+            "required" : true,
+            "schema" : {
+              "type" : "integer",
+              "minimum" : 1,
+              "maximum" : 20,
+              "format" : "int32"
+            },
+            "style" : "form"
+          },
+          {
+            "name" : "start_time",
+            "in" : "query",
+            "description" : "YYYY-MM-DDTHH:mm:ssZ. The earliest UTC timestamp to which the Tweets will be provided.",
+            "required" : false,
+            "example" : "2021-02-14T18:40:40.000Z",
+            "schema" : {
+              "type" : "string",
+              "format" : "date-time"
+            },
+            "style" : "form"
+          },
+          {
+            "name" : "end_time",
+            "in" : "query",
+            "description" : "YYYY-MM-DDTHH:mm:ssZ. The latest UTC timestamp to which the Tweets will be provided.",
+            "required" : false,
+            "example" : "2021-02-14T18:40:40.000Z",
+            "schema" : {
+              "type" : "string",
+              "format" : "date-time"
+            },
+            "style" : "form"
+          },
+          {
+            "$ref" : "#/components/parameters/TweetFieldsParameter"
+          },
+          {
+            "$ref" : "#/components/parameters/TweetExpansionsParameter"
+          },
+          {
+            "$ref" : "#/components/parameters/MediaFieldsParameter"
+          },
+          {
+            "$ref" : "#/components/parameters/PollFieldsParameter"
+          },
+          {
+            "$ref" : "#/components/parameters/UserFieldsParameter"
+          },
+          {
+            "$ref" : "#/components/parameters/PlaceFieldsParameter"
+          }
+        ],
+        "responses" : {
+          "200" : {
+            "description" : "The request has succeeded.",
+            "content" : {
+              "application/json" : {
+                "schema" : {
+                  "$ref" : "#/components/schemas/StreamingTweetResponse"
+                }
+              }
+            }
+          },
+          "default" : {
+            "description" : "The request has failed.",
+            "content" : {
+              "application/json" : {
+                "schema" : {
+                  "$ref" : "#/components/schemas/Error"
+                }
+              },
+              "application/problem+json" : {
+                "schema" : {
+                  "$ref" : "#/components/schemas/Problem"
+                }
+              }
+            }
+          }
+        },
+        "x-twitter-streaming" : true
+      }
+    },
+    "/2/tweets/firehose/stream/lang/ko" : {
+      "get" : {
+        "security" : [
+          {
+            "BearerToken" : [ ]
+          }
+        ],
+        "tags" : [
+          "Tweets"
+        ],
+        "summary" : "Korean Language Firehose stream",
+        "description" : "Streams 100% of Korean Language public Tweets.",
+        "operationId" : "getTweetsFirehoseStreamLangKo",
+        "parameters" : [
+          {
+            "name" : "backfill_minutes",
+            "in" : "query",
+            "description" : "The number of minutes of backfill requested.",
+            "required" : false,
+            "schema" : {
+              "type" : "integer",
+              "minimum" : 0,
+              "maximum" : 5,
+              "format" : "int32"
+            },
+            "style" : "form"
+          },
+          {
+            "name" : "partition",
+            "in" : "query",
+            "description" : "The partition number.",
+            "required" : true,
+            "schema" : {
+              "type" : "integer",
+              "minimum" : 1,
+              "maximum" : 20,
+              "format" : "int32"
+            },
+            "style" : "form"
+          },
+          {
+            "name" : "start_time",
+            "in" : "query",
+            "description" : "YYYY-MM-DDTHH:mm:ssZ. The earliest UTC timestamp to which the Tweets will be provided.",
+            "required" : false,
+            "example" : "2021-02-14T18:40:40.000Z",
+            "schema" : {
+              "type" : "string",
+              "format" : "date-time"
+            },
+            "style" : "form"
+          },
+          {
+            "name" : "end_time",
+            "in" : "query",
+            "description" : "YYYY-MM-DDTHH:mm:ssZ. The latest UTC timestamp to which the Tweets will be provided.",
+            "required" : false,
+            "example" : "2021-02-14T18:40:40.000Z",
+            "schema" : {
+              "type" : "string",
+              "format" : "date-time"
+            },
+            "style" : "form"
+          },
+          {
+            "$ref" : "#/components/parameters/TweetFieldsParameter"
+          },
+          {
+            "$ref" : "#/components/parameters/TweetExpansionsParameter"
+          },
+          {
+            "$ref" : "#/components/parameters/MediaFieldsParameter"
+          },
+          {
+            "$ref" : "#/components/parameters/PollFieldsParameter"
+          },
+          {
+            "$ref" : "#/components/parameters/UserFieldsParameter"
+          },
+          {
+            "$ref" : "#/components/parameters/PlaceFieldsParameter"
+          }
+        ],
+        "responses" : {
+          "200" : {
+            "description" : "The request has succeeded.",
+            "content" : {
+              "application/json" : {
+                "schema" : {
+                  "$ref" : "#/components/schemas/StreamingTweetResponse"
+                }
+              }
+            }
+          },
+          "default" : {
+            "description" : "The request has failed.",
+            "content" : {
+              "application/json" : {
+                "schema" : {
+                  "$ref" : "#/components/schemas/Error"
+                }
+              },
+              "application/problem+json" : {
+                "schema" : {
+                  "$ref" : "#/components/schemas/Problem"
+                }
+              }
+            }
+          }
+        },
+        "x-twitter-streaming" : true
+      }
+    },
+    "/2/tweets/firehose/stream/lang/pt" : {
+      "get" : {
+        "security" : [
+          {
+            "BearerToken" : [ ]
+          }
+        ],
+        "tags" : [
+          "Tweets"
+        ],
+        "summary" : "Portuguese Language Firehose stream",
+        "description" : "Streams 100% of Portuguese Language public Tweets.",
+        "operationId" : "getTweetsFirehoseStreamLangPt",
+        "parameters" : [
+          {
+            "name" : "backfill_minutes",
+            "in" : "query",
+            "description" : "The number of minutes of backfill requested.",
+            "required" : false,
+            "schema" : {
+              "type" : "integer",
+              "minimum" : 0,
+              "maximum" : 5,
+              "format" : "int32"
+            },
+            "style" : "form"
+          },
+          {
+            "name" : "partition",
+            "in" : "query",
+            "description" : "The partition number.",
+            "required" : true,
+            "schema" : {
+              "type" : "integer",
+              "minimum" : 1,
+              "maximum" : 20,
+              "format" : "int32"
+            },
+            "style" : "form"
+          },
+          {
+            "name" : "start_time",
+            "in" : "query",
+            "description" : "YYYY-MM-DDTHH:mm:ssZ. The earliest UTC timestamp to which the Tweets will be provided.",
+            "required" : false,
+            "example" : "2021-02-14T18:40:40.000Z",
+            "schema" : {
+              "type" : "string",
+              "format" : "date-time"
+            },
+            "style" : "form"
+          },
+          {
+            "name" : "end_time",
+            "in" : "query",
+            "description" : "YYYY-MM-DDTHH:mm:ssZ. The latest UTC timestamp to which the Tweets will be provided.",
+            "required" : false,
+            "example" : "2021-02-14T18:40:40.000Z",
+            "schema" : {
+              "type" : "string",
+              "format" : "date-time"
+            },
+            "style" : "form"
+          },
+          {
+            "$ref" : "#/components/parameters/TweetFieldsParameter"
+          },
+          {
+            "$ref" : "#/components/parameters/TweetExpansionsParameter"
+          },
+          {
+            "$ref" : "#/components/parameters/MediaFieldsParameter"
+          },
+          {
+            "$ref" : "#/components/parameters/PollFieldsParameter"
+          },
+          {
+            "$ref" : "#/components/parameters/UserFieldsParameter"
+          },
+          {
+            "$ref" : "#/components/parameters/PlaceFieldsParameter"
+          }
+        ],
+        "responses" : {
+          "200" : {
+            "description" : "The request has succeeded.",
+            "content" : {
+              "application/json" : {
+                "schema" : {
+                  "$ref" : "#/components/schemas/StreamingTweetResponse"
+                }
+              }
+            }
+          },
+          "default" : {
+            "description" : "The request has failed.",
+            "content" : {
+              "application/json" : {
+                "schema" : {
+                  "$ref" : "#/components/schemas/Error"
+                }
+              },
+              "application/problem+json" : {
+                "schema" : {
+                  "$ref" : "#/components/schemas/Problem"
+                }
+              }
+            }
+          }
+        },
+        "x-twitter-streaming" : true
+      }
+    },
     "/2/tweets/label/stream" : {
       "get" : {
         "security" : [
@@ -9025,6 +9477,78 @@
           }
         }
       },
+      "Get2TweetsFirehoseStreamLangEnResponse" : {
+        "type" : "object",
+        "properties" : {
+          "data" : {
+            "$ref" : "#/components/schemas/Tweet"
+          },
+          "errors" : {
+            "type" : "array",
+            "minItems" : 1,
+            "items" : {
+              "$ref" : "#/components/schemas/Problem"
+            }
+          },
+          "includes" : {
+            "$ref" : "#/components/schemas/Expansions"
+          }
+        }
+      },
+      "Get2TweetsFirehoseStreamLangJaResponse" : {
+        "type" : "object",
+        "properties" : {
+          "data" : {
+            "$ref" : "#/components/schemas/Tweet"
+          },
+          "errors" : {
+            "type" : "array",
+            "minItems" : 1,
+            "items" : {
+              "$ref" : "#/components/schemas/Problem"
+            }
+          },
+          "includes" : {
+            "$ref" : "#/components/schemas/Expansions"
+          }
+        }
+      },
+      "Get2TweetsFirehoseStreamLangKoResponse" : {
+        "type" : "object",
+        "properties" : {
+          "data" : {
+            "$ref" : "#/components/schemas/Tweet"
+          },
+          "errors" : {
+            "type" : "array",
+            "minItems" : 1,
+            "items" : {
+              "$ref" : "#/components/schemas/Problem"
+            }
+          },
+          "includes" : {
+            "$ref" : "#/components/schemas/Expansions"
+          }
+        }
+      },
+      "Get2TweetsFirehoseStreamLangPtResponse" : {
+        "type" : "object",
+        "properties" : {
+          "data" : {
+            "$ref" : "#/components/schemas/Tweet"
+          },
+          "errors" : {
+            "type" : "array",
+            "minItems" : 1,
+            "items" : {
+              "$ref" : "#/components/schemas/Problem"
+            }
+          },
+          "includes" : {
+            "$ref" : "#/components/schemas/Expansions"
+          }
+        }
+      },
       "Get2TweetsFirehoseStreamResponse" : {
         "type" : "object",
         "properties" : {