Submit a parameter proposal along with an initial deposit.
The proposal details must be supplied via a JSON file. For values that contains
objects, only non-empty fields will be updated.
 
IMPORTANT: Currently parameter changes are evaluated but not validated, so it is
very important that any "value" change is valid (ie. correct type and within bounds)
for its respective parameter, eg. "MaxValidators" should be an integer and not a decimal.
 
Proper vetting of a parameter change proposal should prevent this from happening
(no deposits should occur during the governance process), but it should be noted
regardless.
 
Example:
$ <appd> tx gov submit-proposal param-change <path/to/proposal.json> --from=<key_or_address>
 
Where proposal.json contains:
 
{
  "title": "Staking Param Change",
  "description": "Update max validators",
  "changes": [
    {
      "subspace": "staking",
      "key": "MaxValidators",
      "value": 105
    }
  ],
  "deposit": "1000usei"
}
 
Usage:
  seid tx gov submit-proposal param-change [proposal-file] [flags]
 
Flags:
  -a, --account-number uint      The account number of the signing account (offline mode only)
  -b, --broadcast-mode string    Transaction broadcasting mode (sync|async|block) (default "sync")
      --dry-run                  ignore the --gas flag and perform a simulation of a transaction, but don't broadcast it (when enabled, the local Keybase is not accessible)
      --fee-account string       Fee account pays fees for the transaction instead of deducting from the signer
      --fees string              Fees to pay along with transaction; eg: 10uatom
      --from string              Name or address of private key with which to sign
      --gas string               gas limit to set per-transaction; set to "auto" to calculate sufficient gas automatically (default 200000)
      --gas-adjustment float     adjustment factor to be multiplied against the estimate returned by the tx simulation; if the gas limit is set manually this flag is ignored  (default 1)
      --gas-prices string        Gas prices in decimal format to determine the transaction fee (e.g. 0.1uatom)
      --generate-only            Build an unsigned transaction and write it to STDOUT (when enabled, the local Keybase only accessed when providing a key name)
  -h, --help                     help for param-change
      --keyring-backend string   Select keyring's backend (os|file|kwallet|pass|test|memory) (default "os")
      --keyring-dir string       The client Keyring directory; if omitted, the default 'home' directory will be used
      --ledger                   Use a connected Ledger device
      --node string              <host>:<port> to tendermint rpc interface for this chain (default "tcp://localhost:26657")
      --note string              Note to add a description to the transaction (previously --memo)
      --offline                  Offline mode (does not allow any online functionality
  -o, --output string            Output format (text|json) (default "json")
  -s, --sequence uint            The sequence number of the signing account (offline mode only)
      --sign-mode string         Choose sign mode (direct|amino-json), this is an advanced feature
      --timeout-height uint      Set a block timeout height to prevent the tx from being committed past a certain height
  -y, --yes                      Skip tx broadcasting prompt confirmation
 
Global Flags:
      --chain-id string     The network chain ID
      --home string         directory for config and data (default "~/.sei")
      --log_format string   The logging format (json|plain)
      --log_level string    The logging level (trace|debug|info|warn|error|fatal|panic)
      --trace               print out full stack trace on errors