#
# Get or set a parameter by name or by index.
#

# If set - parameter will be assigned this value, then the new value will be returned
# If not set - current parameter value will be returned
Value value

# Index of the parameter starting from 0; ignored if name is nonempty
uint8 index

# Name of the parameter; always preferred over index if nonempty
uint8[<=40] name

---

# Actual parameter value. For write requests it must contain the newly assigned parameter value.
# Empty value indicates that there is no such parameter.
Value value

Value default_value  # Optional
Value max_value      # Optional
Value min_value      # Optional

# Empty name in response indicates that there is no such parameter
uint8[<=40] name