build: run docs regen in synth.py (#1059)

diff --git a/docs/dyn/compute_beta.targetTcpProxies.html b/docs/dyn/compute_beta.targetTcpProxies.html
index 7b8a645..6949811 100644
--- a/docs/dyn/compute_beta.targetTcpProxies.html
+++ b/docs/dyn/compute_beta.targetTcpProxies.html
@@ -199,6 +199,11 @@
     "id": "A String", # [Output Only] The unique identifier for the resource. This identifier is defined by the server.
     "kind": "compute#targetTcpProxy", # [Output Only] Type of the resource. Always compute#targetTcpProxy for target TCP proxies.
     "name": "A String", # Name of the resource. Provided by the client when the resource is created. The name must be 1-63 characters long, and comply with RFC1035. Specifically, the name must be 1-63 characters long and match the regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter, and all following characters must be a dash, lowercase letter, or digit, except the last character, which cannot be a dash.
+    "proxyBind": True or False, # This field only applies when the forwarding rule that references this target proxy has a loadBalancingScheme set to INTERNAL_SELF_MANAGED.
+        #
+        # When this field is set to true, Envoy proxies set up inbound traffic interception and bind to the IP address and port specified in the forwarding rule. This is generally useful when using Traffic Director to configure Envoy as a gateway or middle proxy (in other words, not a sidecar proxy). The Envoy proxy listens for inbound requests and handles requests when it receives them.
+        #
+        # The default is false.
     "proxyHeader": "A String", # Specifies the type of proxy header to append before sending data to the backend, either NONE or PROXY_V1. The default is NONE.
     "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
     "service": "A String", # URL to the BackendService resource.
@@ -222,6 +227,11 @@
   "id": "A String", # [Output Only] The unique identifier for the resource. This identifier is defined by the server.
   "kind": "compute#targetTcpProxy", # [Output Only] Type of the resource. Always compute#targetTcpProxy for target TCP proxies.
   "name": "A String", # Name of the resource. Provided by the client when the resource is created. The name must be 1-63 characters long, and comply with RFC1035. Specifically, the name must be 1-63 characters long and match the regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter, and all following characters must be a dash, lowercase letter, or digit, except the last character, which cannot be a dash.
+  "proxyBind": True or False, # This field only applies when the forwarding rule that references this target proxy has a loadBalancingScheme set to INTERNAL_SELF_MANAGED.
+      # 
+      # When this field is set to true, Envoy proxies set up inbound traffic interception and bind to the IP address and port specified in the forwarding rule. This is generally useful when using Traffic Director to configure Envoy as a gateway or middle proxy (in other words, not a sidecar proxy). The Envoy proxy listens for inbound requests and handles requests when it receives them.
+      # 
+      # The default is false.
   "proxyHeader": "A String", # Specifies the type of proxy header to append before sending data to the backend, either NONE or PROXY_V1. The default is NONE.
   "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
   "service": "A String", # URL to the BackendService resource.
@@ -332,6 +342,11 @@
         "id": "A String", # [Output Only] The unique identifier for the resource. This identifier is defined by the server.
         "kind": "compute#targetTcpProxy", # [Output Only] Type of the resource. Always compute#targetTcpProxy for target TCP proxies.
         "name": "A String", # Name of the resource. Provided by the client when the resource is created. The name must be 1-63 characters long, and comply with RFC1035. Specifically, the name must be 1-63 characters long and match the regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter, and all following characters must be a dash, lowercase letter, or digit, except the last character, which cannot be a dash.
+        "proxyBind": True or False, # This field only applies when the forwarding rule that references this target proxy has a loadBalancingScheme set to INTERNAL_SELF_MANAGED.
+            #
+            # When this field is set to true, Envoy proxies set up inbound traffic interception and bind to the IP address and port specified in the forwarding rule. This is generally useful when using Traffic Director to configure Envoy as a gateway or middle proxy (in other words, not a sidecar proxy). The Envoy proxy listens for inbound requests and handles requests when it receives them.
+            #
+            # The default is false.
         "proxyHeader": "A String", # Specifies the type of proxy header to append before sending data to the backend, either NONE or PROXY_V1. The default is NONE.
         "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
         "service": "A String", # URL to the BackendService resource.