diff --git a/generated/google-apis-dialogflow_v2beta1/CHANGELOG.md b/generated/google-apis-dialogflow_v2beta1/CHANGELOG.md
index 7a00db015..b6c34e483 100644
--- a/generated/google-apis-dialogflow_v2beta1/CHANGELOG.md
+++ b/generated/google-apis-dialogflow_v2beta1/CHANGELOG.md
@@ -1,7 +1,7 @@
 # Release history for google-apis-dialogflow_v2beta1
 
-### v0.1.0 (2021-01-01)
+### v0.1.0 (2021-01-07)
 
-* Regenerated from discovery document revision 20201213
-* Regenerated using generator version 0.1.0
+* Regenerated from discovery document revision 20201231
+* Regenerated using generator version 0.1.1
 
diff --git a/generated/google-apis-dialogflow_v2beta1/lib/google/apis/dialogflow_v2beta1/classes.rb b/generated/google-apis-dialogflow_v2beta1/lib/google/apis/dialogflow_v2beta1/classes.rb
index 54a9f5141..599cbed27 100644
--- a/generated/google-apis-dialogflow_v2beta1/lib/google/apis/dialogflow_v2beta1/classes.rb
+++ b/generated/google-apis-dialogflow_v2beta1/lib/google/apis/dialogflow_v2beta1/classes.rb
@@ -4753,9 +4753,10 @@ module Google
         # symbol table, dictionary, or JSON object composed of a collection of (MapKey,
         # MapValue) pairs: - MapKey type: string - MapKey value: parameter name -
         # MapValue type: - If parameter's entity type is a composite entity: map - Else:
-        # string or number, depending on parameter value type - MapValue value: - If
-        # parameter's entity type is a composite entity: map from composite entity
-        # property names to property values - Else: parameter value
+        # depending on parameter value type, could be one of string, number, boolean,
+        # null, list or map - MapValue value: - If parameter's entity type is a
+        # composite entity: map from composite entity property names to property values -
+        # Else: parameter value
         # Corresponds to the JSON property `parameters`
         # @return [Hash<String,Object>]
         attr_accessor :parameters
@@ -4933,9 +4934,10 @@ module Google
         # table, dictionary, or JSON object composed of a collection of (MapKey,
         # MapValue) pairs: - MapKey type: string - MapKey value: parameter name -
         # MapValue type: - If parameter's entity type is a composite entity: map - Else:
-        # string or number, depending on parameter value type - MapValue value: - If
-        # parameter's entity type is a composite entity: map from composite entity
-        # property names to property values - Else: parameter value
+        # depending on parameter value type, could be one of string, number, boolean,
+        # null, list or map - MapValue value: - If parameter's entity type is a
+        # composite entity: map from composite entity property names to property values -
+        # Else: parameter value
         # Corresponds to the JSON property `parameters`
         # @return [Hash<String,Object>]
         attr_accessor :parameters
@@ -6412,10 +6414,10 @@ module Google
         # library language, this is a map, associative array, symbol table, dictionary,
         # or JSON object composed of a collection of (MapKey, MapValue) pairs: - MapKey
         # type: string - MapKey value: parameter name - MapValue type: - If parameter's
-        # entity type is a composite entity: map - Else: string or number, depending on
-        # parameter value type - MapValue value: - If parameter's entity type is a
-        # composite entity: map from composite entity property names to property values -
-        # Else: parameter value
+        # entity type is a composite entity: map - Else: depending on parameter value
+        # type, could be one of string, number, boolean, null, list or map - MapValue
+        # value: - If parameter's entity type is a composite entity: map from composite
+        # entity property names to property values - Else: parameter value
         # Corresponds to the JSON property `parameters`
         # @return [Hash<String,Object>]
         attr_accessor :parameters
@@ -7123,9 +7125,10 @@ module Google
         # symbol table, dictionary, or JSON object composed of a collection of (MapKey,
         # MapValue) pairs: - MapKey type: string - MapKey value: parameter name -
         # MapValue type: - If parameter's entity type is a composite entity: map - Else:
-        # string or number, depending on parameter value type - MapValue value: - If
-        # parameter's entity type is a composite entity: map from composite entity
-        # property names to property values - Else: parameter value
+        # depending on parameter value type, could be one of string, number, boolean,
+        # null, list or map - MapValue value: - If parameter's entity type is a
+        # composite entity: map from composite entity property names to property values -
+        # Else: parameter value
         # Corresponds to the JSON property `parameters`
         # @return [Hash<String,Object>]
         attr_accessor :parameters
@@ -7584,9 +7587,10 @@ module Google
         # table, dictionary, or JSON object composed of a collection of (MapKey,
         # MapValue) pairs: - MapKey type: string - MapKey value: parameter name -
         # MapValue type: - If parameter's entity type is a composite entity: map - Else:
-        # string or number, depending on parameter value type - MapValue value: - If
-        # parameter's entity type is a composite entity: map from composite entity
-        # property names to property values - Else: parameter value
+        # depending on parameter value type, could be one of string, number, boolean,
+        # null, list or map - MapValue value: - If parameter's entity type is a
+        # composite entity: map from composite entity property names to property values -
+        # Else: parameter value
         # Corresponds to the JSON property `parameters`
         # @return [Hash<String,Object>]
         attr_accessor :parameters
@@ -10271,10 +10275,10 @@ module Google
         # library language, this is a map, associative array, symbol table, dictionary,
         # or JSON object composed of a collection of (MapKey, MapValue) pairs: - MapKey
         # type: string - MapKey value: parameter name - MapValue type: - If parameter's
-        # entity type is a composite entity: map - Else: string or number, depending on
-        # parameter value type - MapValue value: - If parameter's entity type is a
-        # composite entity: map from composite entity property names to property values -
-        # Else: parameter value
+        # entity type is a composite entity: map - Else: depending on parameter value
+        # type, could be one of string, number, boolean, null, list or map - MapValue
+        # value: - If parameter's entity type is a composite entity: map from composite
+        # entity property names to property values - Else: parameter value
         # Corresponds to the JSON property `parameters`
         # @return [Hash<String,Object>]
         attr_accessor :parameters
@@ -10775,7 +10779,9 @@ module Google
         include Google::Apis::Core::Hashable
       
         # Optional. The name of the voice. If not set, the service will choose a voice
-        # based on the other parameters such as language_code and ssml_gender.
+        # based on the other parameters such as language_code and ssml_gender. For the
+        # list of available voices, please refer to [Supported voices and languages](
+        # https://cloud.google.com/text-to-speech/docs/voices).
         # Corresponds to the JSON property `name`
         # @return [String]
         attr_accessor :name
diff --git a/generated/google-apis-dialogflow_v2beta1/lib/google/apis/dialogflow_v2beta1/gem_version.rb b/generated/google-apis-dialogflow_v2beta1/lib/google/apis/dialogflow_v2beta1/gem_version.rb
index 39dbd2a5d..aeddd7755 100644
--- a/generated/google-apis-dialogflow_v2beta1/lib/google/apis/dialogflow_v2beta1/gem_version.rb
+++ b/generated/google-apis-dialogflow_v2beta1/lib/google/apis/dialogflow_v2beta1/gem_version.rb
@@ -19,10 +19,10 @@ module Google
       GEM_VERSION = "0.1.0"
 
       # Version of the code generator used to generate this client
-      GENERATOR_VERSION = "0.1.0"
+      GENERATOR_VERSION = "0.1.1"
 
       # Revision of the discovery document this client was generated from
-      REVISION = "20201213"
+      REVISION = "20201231"
     end
   end
 end
diff --git a/generated/google-apis-dialogflow_v2beta1/synth.metadata b/generated/google-apis-dialogflow_v2beta1/synth.metadata
index f695b0203..535d0881c 100644
--- a/generated/google-apis-dialogflow_v2beta1/synth.metadata
+++ b/generated/google-apis-dialogflow_v2beta1/synth.metadata
@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/google-api-ruby-client.git",
-        "sha": "e698564f18ee833201743f56b739e0e7831d14dd"
+        "sha": "6de8b4ee653db67c0e789203767a89b32fcf8a51"
       }
     }
   ]